UPSC Mains 2015 Geography Optional Question Papers with Model Answers

All 56 questions of the 2015 Civil Services Main Examination, Geography Paper I and Geography Paper II, with marks and a suggested time per part. Solve each part on paper first, then open the model answer, or send it to answer-writing practice for evaluation.

UPSC Mains 2015 Geography Paper I

Question 1 (50 marks)

Q1(a) · Geomorphic Processes and Landscape Development · 10 marks≈ 7 min
Geomorphic Cycles and Landscape Development (Davis, Penck, King)
Attempt a classification of geomorphic processes from the zonal point of view.
हिंदी में प्रश्न
कटिबन्धीय दृष्टिकोण से भू-आकृतिक प्रक्रमों का वर्गीकरण लिखिए।
Practise this question Geomorphic Processes and Landscape Development notes
Model answer
Paper and question: Paper I, Q1(a)
Approach: Explain what a zonal (morphoclimatic) classification means, name Peltier, Tricart–Cailleux and Büdel, then list zones with dominant processes and Indian examples, and note the azonal processes; draw a latitudinal process-zone sketch.
A zonal classification groups exogenic processes by the climatic zones in which they dominate, since temperature and rainfall decide the type and rate of weathering and erosion. It rests on climatic geomorphology — L.C. Peltier’s morphogenetic regions (1950), J. Tricart and A. Cailleux’s morphoclimatic zones and J. Büdel’s climatogenetic zones.
Glacial zone: ice abrasion, plucking and frost shattering (Antarctica, Greenland, Himalayan glaciers).
Periglacial zone: frost wedging, solifluction, nivation and patterned ground (Siberia, Ladakh).
Humid mid-latitude zone: moderate chemical weathering, river erosion and soil creep (western Europe).
Humid tropical zone: deep chemical weathering, laterite and etchplains; landslides on wet slopes (Kerala, Amazonia).
Savanna zone: seasonal sheetwash, pediments and inselbergs (Deccan interior, East Africa).
Arid zone: mechanical weathering, wind deflation and abrasion, flash floods (Thar, Sahara).
Diagram: Pole-to-equator strip showing zones with their dominant process symbols.
Azonal processes — endogenic tectonics and volcanism, and coastal and karst processes — cut across zones. Since many landforms are relict from past climates, such a classification is indicative rather than rigid.
Q1(b) · Climatology: Atmosphere and Circulation · 10 marks≈ 7 min
Atmospheric Stability, Air Masses and Frontogenesis
Discuss as to how frontogenesis contributes to weather instability.
हिंदी में प्रश्न
विवेचना कीजिए कि वाताग्रजनन (फ्रंटोजेनेसिस) किस प्रकार मौसम अस्थिरता में योगदान करता है।
Practise this question Climatology: Atmosphere and Circulation notes
Model answer
Paper and question: Paper I, Q1(b)
Approach: Define frontogenesis and show how the fronts it creates lift air and release instability, with cold and warm front weather and frontal cyclones as examples. Draw a cold front cross-section.
Frontogenesis is the formation or sharpening of a front where contrasting air masses converge, as along the polar front between cold polar and warm tropical air.
How it causes instability: the denser cold air acts as a wedge and forces the lighter warm air to rise. Rising air cools adiabatically, reaches saturation and releases latent heat, which makes conditionally unstable air buoyant.
Cold front: its steep slope causes rapid uplift, towering cumulonimbus, thunderstorms, squalls, hail, and a sharp fall in temperature with a wind shift.
Diagram: Steep wedge of cold air undercutting warm air, with a cumulonimbus at the boundary and heavy rain just behind the front.
Warm front: gentle uplift gives a sequence of cirrus, altostratus and nimbostratus, with prolonged rain or drizzle.
Frontal cyclones: waves on the front grow into temperate cyclones that bring changeable weather to western Europe and North America; western disturbances bring winter rain and snow to north-west India.
Frontogenesis is thus the main source of weather instability in the mid-latitudes.
Q1(c) · Oceanography · 10 marks≈ 7 min
Ocean Bottom Topography and Ocean Deposits
Describe the characteristics of different types of pelagic deposits.
हिंदी में प्रश्न
विभिन्न प्रकार के पेलैजिक (अंबुधी) निक्षेपों की विशिष्टताओं का वर्णन कीजिए।
Practise this question Oceanography notes
Model answer
Paper and question: Paper I, Q1(c)
Approach: Define pelagic deposits (after Murray and Renard), then describe each type (calcareous oozes, siliceous oozes, red clay) by composition, depth and distribution; draw a profile showing the carbonate compensation depth.
Pelagic deposits are fine sediments of the deep-sea floor far from land, made of plankton remains and inorganic dust. John Murray and A.F. Renard classified them from the Challenger expedition samples (1872–76). They accumulate very slowly.
Calcareous oozes (over 30 per cent skeletal matter): globigerina ooze, of foraminifera shells, is the most widespread, covering much of the Atlantic; pteropod ooze occurs in shallower tropical waters because aragonite dissolves sooner. Both disappear below the carbonate compensation depth (about 4,000–5,000 m).
Siliceous oozes: diatom ooze forms a belt around Antarctica and in the North Pacific, where cold, nutrient-rich water favours diatoms; radiolarian ooze occurs in the deep tropical Pacific, below the CCD, as silica resists dissolution.
Red clay: the deepest and most extensive deposit, in the central and north Pacific; made of wind-blown dust, volcanic ash and meteoric particles, with sharks' teeth and manganese nodules.
Diagram: Profile from shelf to abyss showing terrigenous mud on the shelf, calcareous ooze on ridges above the CCD, and siliceous ooze and red clay below it.
Pelagic deposits thus record surface productivity, depth and past climates, and host valuable nodules.
Q1(d) · Environmental Geography · 10 marks≈ 7 min
Principles of Ecology and Human Ecological Adaptations
Explain the characteristics of ecological succession.
हिंदी में प्रश्न
पारिस्थितिक अनुक्रमण के अभिलक्षणों की व्याख्या कीजिए।
Practise this question Environmental Geography notes
Model answer
Paper and question: Paper I, Q1(d)
Approach: Define ecological succession (Clements), then list its characteristics (directional, stages, autogenic change, rising biomass and diversity, climax) with primary and secondary examples. Draw the seral stages of a hydrosere or xerosere.
Ecological succession is the orderly, directional change in the species composition of a community over time until a relatively stable climax community develops. F.E. Clements (1916) gave the classic account;
Directional and sequential: it moves through recognisable seral stages, from pioneer to intermediate to climax. Primary succession begins on bare surfaces such as lava or rock (xerosere) or open water (hydrosere); secondary succession follows disturbance, as on abandoned jhum fields in the Northeast.
Diagram: Xerosere stages in a row: bare rock → lichens → mosses → herbs and grasses → shrubs → trees (climax forest), with arrows showing deepening soil.
Autogenic change: each stage modifies soil, moisture and light making it suit the next stage better. External forces such as fire or flooding cause allogenic change.
Ecosystem trends: biomass, soil depth, organic matter, species diversity and food-web complexity increase; nutrient cycles become closed; net production falls as respiration nearly equals gross production at climax.
Climax: Clements held one climatic climax per region (monoclimax); Tansley proposed several (polyclimax) controlled by soil and topography, and Whittaker a continuum of climax patterns, so the idea is debated.
Succession guides restoration of mine spoils, wetlands and jhum fallows.
Q1(e) · Environmental Geography · 10 marks≈ 7 min
Environmental Hazards, Policy, Education and Legislation
Comment on the impact of environmental education on quality of life.
हिंदी में प्रश्न
जीवन की गुणता पर पर्यावरणीय शिक्षा के प्रभाव पर टिप्पणी कीजिए।
Practise this question Environmental Geography notes
Model answer
Paper and question: Paper I, Q1(e)
Approach: Define quality of life and environmental education, then comment on EE's impact through health, clean surroundings, livelihoods, safety and empowerment with Indian examples, noting its limits; draw a flow chart from EE to quality of life.
Quality of life covers health, income, safety, a clean environment and well-being. Environmental education improves it by changing what people know, value and do.
Health: awareness of sanitation, safe water and clean cooking fuel reduces disease; Swachh Bharat (2014) and Ujjwala (2016) relied heavily on behaviour change.
Clean surroundings: sustained waste-segregation drives made Indore a leader in national urban cleanliness surveys, and awareness of air pollution builds support for cleaner transport.
Livelihoods and resources: farmers trained in water harvesting and soil conservation, as in Ralegan Siddhi, gained income and water security; ecotourism trains local people as guides.
Safety: disaster education has saved lives in Odisha's cyclones, and awareness of heat stress reduces heatwave deaths.
Diagram: Flow chart: environmental education → awareness and skills → behaviour change → better health, income, safety and surroundings → higher quality of life.
Empowerment: informed citizens take part in decisions, as the Kerala Sastra Sahitya Parishad showed in the Silent Valley campaign. The impact is limited where poverty constrains choices, so EE must go hand in hand with economic support.

Question 2 (50 marks)

Q2(a) · Geomorphic Processes and Landscape Development · 20 marks≈ 14 min
Geomorphic Cycles and Landscape Development (Davis, Penck, King)
Discuss the contributions of the American School of Subaerial Denudation in geomorphology.
हिंदी में प्रश्न
भू-आकृति विज्ञान में, भूपृष्ठीय अनाच्छादन (सब-एरियल डिन्यूडेशन) के अमेरिकी संप्रदाय के योगदानों की विवेचना कीजिए।
Practise this question Geomorphic Processes and Landscape Development notes
Model answer
Paper and question: Paper I, Q2(a)
Approach: Place the American school in the nineteenth-century debate on subaerial versus marine denudation, then take Powell, Gilbert, Dutton and Davis in turn with their concepts and field areas, and assess their legacy; sketch base level and antecedent drainage.
In the mid-nineteenth century many British geologists, following Lyell, credited the sea with planing land surfaces. The surveys of the arid, well-exposed American West convinced a group of geologists that subaerial denudation — weathering and running water — sculpts most landscapes. This ‘American school’ laid the foundations of modern geomorphology.
J.W. Powell: after exploring the Colorado River, he introduced the concept of base level (1875), the lowest level to which a river can erode, and classified valleys as antecedent, consequent and superimposed, citing the Green River cutting through the Uinta Mountains as antecedent.
G.K. Gilbert: in the Report on the Geology of the Henry Mountains (1877) he stated laws of uniform slope, of structure and of divides, explained the graded stream as a balance between erosion and load, described laccoliths, and later studied Lake Bonneville and hydraulic-mining debris. His equilibrium ideas anticipated modern process geomorphology.
C.E. Dutton: in the Grand Canyon district he described the ‘great denudation’ of the plateaus and coined the term isostasy (1889), linking erosion with crustal uplift.
W.M. Davis: synthesising this work, he proposed the cycle of erosion (1889–1899) with structure, process and stage, a genetic classification of streams, and explanatory description; his model dominated geomorphology for half a century.
Diagram: Long profile of a river graded to base level, and a sketch of an antecedent river cutting a gorge across a rising fold.
Assessment: the school established fluvial dominance, quantitative field observation and a cyclic, historical view of landscape. Davis’s qualitative cycle later eclipsed Gilbert’s process approach until J.T. Hack and A.N. Strahler revived it after 1950. Its concepts — base level, grade, antecedence, isostasy — remain basic tools, for example in explaining the antecedent gorges of the Indus, Sutlej and Brahmaputra across the Himalaya.
Q2(b) · Climatology: Weather Systems, Climates and Climate Change · 15 marks≈ 11 min
Classification of World Climates (Koppen, Thornthwaite, Trewartha)
What is Potential Evapotranspiration? Explain how it is used in assessing the water balance in an area.
हिंदी में प्रश्न
संभाव्य वाष्पन-वाष्पोत्सर्जन क्या है? स्पष्ट कीजिए कि किसी क्षेत्र के जल संतुलन का आकलन करने में इसका किस प्रकार उपयोग किया जाता है।
Practise this question Climatology: Weather Systems, Climates and Climate Change notes
Model answer
Paper and question: Paper I, Q2(b)
Approach: Define potential evapotranspiration and contrast it with actual evapotranspiration, then explain the Thornthwaite–Mather water balance (comparison of P and PE, soil-moisture storage, utilisation, recharge, deficit, surplus) and its uses, with an Indian example and a water-balance graph.
Potential evapotranspiration (PE), a concept introduced by C.W. Thornthwaite (1948), is the water loss that would occur from a vegetated surface if water supply were unlimited. It is the climatic demand for water, set mainly by energy (temperature and day length). Actual evapotranspiration (AE) is the loss that really occurs and equals PE only when water is plentiful.
Water balance: Thornthwaite and Mather (1955) compared monthly precipitation (P) with PE, treating the soil as a store holding a fixed amount (often taken as 100 mm or more, depending on soil and roots).
Steps: (i) when P exceeds PE, the extra first recharges soil moisture and, once the soil is full, becomes a water surplus that feeds runoff and groundwater; (ii) when P falls below PE, plants draw on stored moisture (utilisation); (iii) when the store is exhausted, AE falls below PE and the gap is the water deficit.
Uses: the annual surplus and deficit give a moisture index that classifies climates from perhumid to arid; deficits show when and how much irrigation is needed; surpluses indicate runoff for reservoir planning; and the indices help assess drought.
India: V.P. Subrahmanyam applied the method to India, showing surpluses on the west coast and in the North-East, and deficits increasing towards Rajasthan and the rain-shadow Deccan.
Diagram: Water-balance graph with monthly P and PE curves for a monsoon station, shading surplus, utilisation, deficit and recharge periods.
PE thus turns rainfall into a measure of real water availability.
Q2(c) · Environmental Geography · 15 marks≈ 11 min
Biodiversity and Sustainable Development
Discuss the methods of conserving biodiversity for sustainable development.
हिंदी में प्रश्न
सम्पोषित विकास (सस्टेनेबल डेवेलेपमेंट) के लिए जैव-विविधता के संरक्षण की विधियों की विवेचना कीजिए।
Practise this question Environmental Geography notes
Model answer
Paper and question: Paper I, Q2(c)
Approach: Link biodiversity conservation to sustainable development through the CBD goals, then discuss in situ, ex situ, legal, community and economic methods with Indian and global examples, and conclude on integrating them with livelihoods; draw a tree chart of conservation methods.
Biodiversity conservation for sustainable development means preserving genetic, species and ecosystem diversity while using it wisely, the three goals of the Convention on Biological Diversity (1992): conservation, sustainable use and fair sharing of benefits.
In situ conservation protects species in their habitats through national parks, wildlife sanctuaries, tiger reserves, community and conservation reserves and biosphere reserves such as the Nilgiri, India's first (1986). Hotspots, identified by Norman Myers (1988), help set priorities.
Ex situ conservation uses zoos, botanical gardens, seed and gene banks such as NBPGR in New Delhi, cryopreservation and captive breeding, for example vulture breeding at Pinjore in Haryana and the reintroduction of cheetahs at Kuno (2022).
Legal and policy measures: the Wild Life (Protection) Act 1972, Forest (Conservation) Act 1980 and Biological Diversity Act 2002 with Biodiversity Management Committees; globally CITES, the Ramsar Convention and the Kunming-Montreal Global Biodiversity Framework (2022), which aims to protect 30 percent of land and sea by 2030.
Community and traditional methods: sacred groves, Bishnoi traditions, People's Biodiversity Registers and Joint Forest Management. Economic tools: ecotourism, payment for ecosystem services and access and benefit sharing reward local people.
Diagram: Tree chart: biodiversity conservation → in situ (national parks, sanctuaries, biosphere reserves, sacred groves), ex situ (zoos, gene banks, botanical gardens), legal (Acts, treaties), community and economic tools.
No single method suffices. Linking them with livelihoods, as in the eco-development committees of Periyar Tiger Reserve, makes conservation itself sustainable.

Question 3 (50 marks)

Q3(a) · Climatology: Weather Systems, Climates and Climate Change · 20 marks≈ 14 min
Classification of World Climates (Koppen, Thornthwaite, Trewartha)
Discuss the basis of Köppen's climatic classification. Bring out the salient characteristics of 'Cs' type of climate.
हिंदी में प्रश्न
कोपेन के जलवायु वर्गीकरण के आधार की विवेचना कीजिए। 'Cs' प्रकार की जलवायु के प्रमुख अभिलक्षणों को स्पष्ट कीजिए।
Practise this question Climatology: Weather Systems, Climates and Climate Change notes
Model answer
Paper and question: Paper I, Q3(a)
Approach: Discuss the basis of Köppen's scheme (vegetation boundaries, monthly temperature and precipitation thresholds, letter code), then bring out the salient features of the Cs (Mediterranean) climate: location, causes, temperature, rainfall, sub-types, vegetation and economy; include a world map of Cs regions.
Wladimir Köppen, a botanist-climatologist, published his classification in 1900 and revised it in 1918 and 1936. It remains the most widely used scheme.
Basis: (i) Köppen assumed that natural vegetation is the best expression of climate, drawing on de Candolle's plant groups, so he set climate boundaries to match vegetation limits; (ii) he used mean monthly and annual temperature and precipitation; (iii) he fixed numerical thresholds, for example 18°C for the coldest month of A climates, 10°C for the warmest month as the tree line, and a dryness limit for B; (iv) he used a letter code: capitals for main groups (A, B, C, D, E), small letters for rainfall season (f, s, w, m) and temperature (a, b, c, d, h, k).
Cs climate (Mediterranean): warm temperate with a dry summer. 's' means the driest summer month has less than one-third the rain of the wettest winter month and less than about 30–40 mm (the threshold varies by edition).
Location and cause: west coasts between about 30° and 45°, Mediterranean basin, California, central Chile, the south-western Cape and south-west and southern Australia. The seasonal shift of pressure belts brings subtropical high pressure in summer and westerlies with cyclones in winter.
Characteristics: mean summer temperatures about 20–27°C, mild winters about 5–12°C; annual rain about 350–900 mm, mostly in winter; sunny skies. Csa (hot summer, Rome, Los Angeles inland) and Csb (warm summer, Lisbon, San Francisco) are sub-types.
Vegetation and economy: drought-resistant sclerophyll evergreen woodland (maquis, chaparral, fynbos); citrus, olive and grape growing, wine making and tourism. Local winds include the sirocco and mistral.
Map: World map shading Cs regions on western margins between 30° and 45° in both hemispheres.
Köppen's basis defines Cs precisely, though it describes rather than explains the circulation behind it.
Q3(b) · Geomorphic Processes and Landscape Development · 15 marks≈ 11 min
Channel Morphology and Fluvial Landforms
Explain with examples as to how channel dynamics has been responsible for the development of alluvial fans and cones.
हिंदी में प्रश्न
सोदाहरण व्याख्या कीजिए कि चैनल गतिकी जलोढ पंखों एवं शंकुओं के विकास के लिए किस प्रकार उत्तरदायी बनी रही है।
Practise this question Geomorphic Processes and Landscape Development notes
Model answer
Paper and question: Paper I, Q3(b)
Approach: Define alluvial fans and cones, explain the channel processes at the mountain front (loss of confinement, gradient break, avulsion, sheetflood, debris flow, fanhead trenching) that build them, and give Himalayan and world examples; draw a fan plan and radial profile.
An alluvial fan is a fan- or cone-shaped body of sediment deposited where a stream leaves a confined mountain valley and enters an open plain. Steeper, smaller and coarser forms built by small streams or debris flows are called alluvial cones.
Channel dynamics at the apex: the channel loses confinement and spreads; the sudden break in gradient and increase in width reduce depth, velocity and competence, so the coarsest load is dropped first near the apex and finer material farther out, giving radial fining.
Channel switching: deposition raises the active channel until it overflows and avulses to a lower part of the fan; repeated switching of distributaries spreads sediment over the whole sector and builds the radial cone. Sheetfloods and braided channels dominate in flood; debris flows build steep lobes on cones.
Fanhead trenching: uplift, climate change or reduced sediment supply make the main channel incise the upper fan, shifting deposition to the toe; coalescing fans along a range form a bajada.
Diagram: Plan of a fan at a mountain front with apex, radiating distributaries and abandoned channels, and a radial profile showing concave form and grain-size fining.
Examples: the Kosi megafan in north Bihar and the Gandak and Tista fans; the bouldery Bhabar belt at the Himalayan foot is a series of coalescing fans; Death Valley fans in California and the bajadas of the Andes and Tibet.
Fans thus record the interplay of discharge, sediment and channel instability.
Q3(c) · Biogeography · 15 marks≈ 11 min
Soil Genesis, Profile, Classification and Distribution
Classify soils based on their zonal distribution and describe the characteristics of pedocals.
हिंदी में प्रश्न
कटिबन्धीय वितरण के आधार पर मृदाओं का वर्गीकरण कीजिए एवं पेडोकल के अभिलक्षणों का वर्णन कीजिए।
Practise this question Biogeography notes
Model answer
Paper and question: Paper I, Q3(c)
Approach: Give the zonal–intrazonal–azonal classification and the pedalfer–pedocal division of zonal soils, then describe pedocals (process, profile, types, distribution); draw a humid-to-arid transect.
The 1938 USDA classification, based on the Russian school, grouped soils by distribution: zonal soils shaped by climate and vegetation over wide belts, intrazonal soils shaped by local drainage or parent rock, and azonal soils too young to have horizons.
C.F. Marbut divided zonal soils into two groups. Pedalfers (Al and Fe) form in humid climates where leaching removes bases and leaves aluminium and iron: tundra soils, podzols, grey-brown podzolic soils, red-yellow soils and laterites. Pedocals (Ca) form in dry climates where calcium accumulates. In the USA the boundary runs roughly along the 98th to 100th meridian.
Characteristics of pedocals: evaporation exceeds rainfall, so water moves only part way down and calcium carbonate is deposited as a white layer or nodules, called kankar in India. They are alkaline, rich in bases and not leached. Humus falls as aridity rises, giving the sequence Chernozem, Chestnut, Brown, Sierozem and red desert soils.
Diagram: A transect from humid east to dry west of the USA showing podzolic soils, then Chernozem, Chestnut, Brown and desert soils, with the carbonate layer rising closer to the surface westward.
Pedocals are naturally fertile and form the grain belts of the prairies, Ukraine and Kazakhstan, but need irrigation and protection from salinity and wind erosion, as in arid Rajasthan.

Question 4 (50 marks)

Q4(a) · Environmental Geography · 20 marks≈ 14 min
Principles of Ecology and Human Ecological Adaptations
Explain the different stages of ecological adaptation of man and bring out the changing balance between man and environment.
हिंदी में प्रश्न
मानव के पारिस्थितिक अनुकूलन की विभिन्न अवस्थाओं की व्याख्या कीजिए तथा मानव एवं पर्यावरण के बीच के परिवर्तनशील संतुलन पर प्रकाश डालिए।
Practise this question Environmental Geography notes
Model answer
Paper and question: Paper I, Q4(a)
Approach: Trace the stages of man's ecological adaptation from hunting-gathering to the post-industrial age, linking each to the philosophy of determinism, possibilism and neo-determinism, and show how the balance shifted from nature's control to human dominance and now to sustainability. A timeline diagram of stages against human impact is essential.
Man's relationship with nature has changed from submission to domination as technology improved. Geographers describe it as a sequence of stages of ecological adaptation, each with a different balance between people and environment.
Hunting and gathering: small bands lived within the limits of local food supply, with fire as the main tool. Impact was slight and local, close to environmental determinism as Ratzel and Semple described it; the Jarawa of the Andamans and the San of the Kalahari retain traces of this life.
Pastoralism: domestication of animals led to nomadic herding and transhumance, as among the Maasai, Bedouin and Gaddis. Grazing changed vegetation locally, and overgrazing could start desertification.
Agriculture: the Neolithic revolution (about 10,000 years ago) brought settled villages, irrigation civilisations in the Nile, Mesopotamia and Indus basins, forest clearance and soil change. This is the stage of possibilism (Vidal de la Blache, Febvre): nature offers possibilities and people choose.
Industrial stage: fossil fuels, machines and cities after the 18th century made humans a geological force: deforestation, mining, air and water pollution, and rising carbon dioxide. Nature was treated as a resource to be conquered.
Post-industrial and information stage: global trade and technology let people overcome many local limits, but global problems such as climate change, ozone depletion and biodiversity loss appear. The term Anthropocene, popularised by Paul Crutzen (2000), reflects this.
Diagram: A timeline with the five stages on the horizontal axis and a rising curve of human impact on the vertical axis, with labels determinism, possibilism, neo-determinism and sustainability placed along it.
The balance thus shifted from environment-dominant to human-dominant, but floods, droughts, pandemics and climate extremes show that nature still sets limits. Griffith Taylor's neo-determinism ('stop-and-go') captures this middle path: people may choose within limits set by nature. Sustainable development, ecological footprint thinking and India's LiFE mission seek a new balance.
Q4(b) · Geomorphic Processes and Landscape Development · 15 marks≈ 11 min
Geomorphic Cycles and Landscape Development (Davis, Penck, King)
"Present-day landforms bear more complexity than simplicity." Elucidate.
हिंदी में प्रश्न
"वर्तमान-काल के स्थल रूपों (लैंडफॉर्म्स) में सरलता की अपेक्षा जटिलता अधिक है।" सविस्तार स्पष्ट कीजिए।
Practise this question Geomorphic Processes and Landscape Development notes
Model answer
Paper and question: Paper I, Q4(b)
Approach: Link the statement to Thornbury’s concept that complexity of geomorphic evolution is more common than simplicity, explain the sources of complexity (polycyclic, polygenetic/polyclimatic, multiple processes, tectonics, exhumation, human action) with examples, and conclude; sketch a multicyclic valley-in-valley profile.
W.D. Thornbury (1954) stated as a fundamental concept that complexity of geomorphic evolution is more common than simplicity. He grouped landscapes as simple or compound (one or several dominant processes), monocyclic or multicyclic, and exhumed (resurrected) landscapes, and observed that most present-day landscapes are compound and multicyclic.
Polycyclic history: repeated uplift interrupts cycles, leaving stepped erosion surfaces, valley-in-valley forms, knickpoints and paired terraces, as on the Chotanagpur plateau and in the Narmada valley.
Polygenetic (polyclimatic) inheritance: Pleistocene climatic swings left relict forms — fossil dunes east of the Aravallis, lacustrine karewas in Kashmir, periglacial head deposits in England and pluvial lake shorelines of Lake Bonneville.
Several processes operate together: glacial, periglacial and fluvial work overlap in the Himalaya, while marine, fluvial and aeolian processes combine on the Kutch coast.
Active tectonics and exhumation: continuing Himalayan uplift tilts terraces and diverts rivers, and ancient surfaces buried under sediments are re-exposed, as with sub-Cretaceous or sub-Eocene surfaces.
Diagram: Valley-in-valley cross-profile with an old broad valley floor, a knickpoint, younger gorge and terrace remnants.
Human action — mining, dams, urbanisation — now adds an anthropogenic layer. Hence simple cyclic models must be used with caution, and explaining present landforms requires reading several episodes of process, climate and tectonics.
Q4(c) · Climatology: Atmosphere and Circulation · 15 marks≈ 11 min
Atmospheric Circulation, Planetary and Local Winds
Explain the meridional circulation of the atmosphere and its importance in world climate.
हिंदी में प्रश्न
वायुमंडल के उत्तर-दक्षिणी परिसंचरण को और विश्व की जलवायु में उसके महत्त्व को स्पष्ट कीजिए।
Practise this question Climatology: Atmosphere and Circulation notes
Model answer
Paper and question: Paper I, Q4(c)
Approach: Explain meridional (north-south) circulation as the vertical cells in the meridian plane, contrast it with zonal flow, and then show its importance for heat transfer, pressure and wind belts, rainfall zones and climatic regions. Draw the meridional cross-section of the cells.
Meridional circulation is the north-south movement of air along the meridians, in vertical cells between the equator and the poles. It differs from zonal circulation, the east-west flow of the westerlies and trades, or the Walker cell over the Pacific.
Structure: in each hemisphere the Hadley cell (0°–30°) carries air up at the ITCZ, poleward aloft and down at the subtropical highs; the indirect Ferrel cell (30°–60°) moves surface air poleward as westerlies; the polar cell (60°–90°) returns cold air equatorward.
Diagram: North-south cross-section from pole to pole showing the three loops in each hemisphere, the tropopause higher at the equator, ITCZ, subtropical highs, polar fronts and jet stream positions.
Importance in world climate: (i) it transfers surplus heat and moisture from the tropics towards the poles, preventing the tropics from overheating; (ii) it creates the pressure belts and planetary winds; (iii) it fixes rainfall zones, with equatorial rainforests under rising air and the Sahara, Kalahari and Thar under sinking air near 30°; (iv) frontal cyclones at the polar front give rain to western Europe.
(v) Its seasonal shift produces transitional climates, such as Mediterranean winter rain and the Indian summer monsoon as the ITCZ moves north.
Since mid-latitude transfer occurs largely through Rossby waves and eddies, the meridional model is a simplification, but it remains the basis of climatic classification.

Question 5 (50 marks)

Q5(a) · Perspectives in Human Geography · 10 marks≈ 7 min
Radical, Behavioural, Humanistic and Welfare Approaches
"The welfare face of geography makes it an inter-disciplinary subject." Elaborate.
हिंदी में प्रश्न
"भूगोल का कल्याणकारी चेहरा इसको एक अंतःशास्त्रीय विषय बना देता है।" विस्तार से स्पष्ट कीजिए।
Practise this question Perspectives in Human Geography notes
Model answer
Paper and question: Paper I, Q5(a)
Approach: Define the welfare approach, then show how its themes (income, health, housing, justice) draw on economics, sociology, political science, public health and planning, and conclude on geography's integrating role.
The welfare approach, associated with D.M. Smith (1977), studies the spatial distribution of well-being: who gets what, where, and how. Because well-being has many dimensions, the approach necessarily borrows concepts and methods from other disciplines.
Links: from welfare economics it takes ideas of income distribution, Pareto optimality and public goods; from sociology, social indicators, class, caste and gender; from political science, the role of the state, power and theories of justice (Rawls); from public health and demography, mortality, morbidity and nutrition; from planning, the location of services and redistribution policies; and from environmental science, environmental justice.
Geography's contribution is the spatial lens: it maps these dimensions across regions and within cities and asks why some places are deprived. Indian examples include district-level HDI reports, NITI Aayog's MPI and the Aspirational Districts Programme.
Diagram: Hub-and-spoke diagram with welfare geography at the centre linked to economics, sociology, political science, public health, planning and environmental science.
Thus the welfare face of geography makes it an integrating, inter-disciplinary subject focused on territorial justice.
Q5(b) · Economic Geography · 10 marks≈ 7 min
World Resources, Energy Crisis and the Limits to Growth
"Energy mix is a step towards sustainability." Discuss.
हिंदी में प्रश्न
"ऊर्जा मिश्रण सम्पोषणीयता (सस्टेनेबिलिटी) की तरफ एक कदम है।" विवेचना कीजिए।
Practise this question Economic Geography notes
Model answer
Paper and question: Paper I, Q5(b)
Approach: Define energy mix, explain how diversification supports environmental, economic and security dimensions of sustainability, with world and Indian examples, and note limits.
The energy mix is the combination of sources (coal, oil, gas, nuclear, hydro, solar, wind, biomass) used to meet a country's energy needs. A diversified, low-carbon mix is a step towards sustainability in three ways.
Environmental: replacing coal with renewables cuts greenhouse gases and air pollution. Economic: domestic solar and wind reduce import bills and price volatility, and create jobs. Security: no single disruption, such as an oil embargo or a drought affecting hydropower, can cripple supply.
Examples: France relies heavily on nuclear power, Norway and Brazil on hydropower, Denmark on wind, and Germany's Energiewende shifted from nuclear and coal to renewables. India's updated NDC (2022) targets about 50 per cent of installed power capacity from non-fossil sources by 2030, alongside 500 GW of non-fossil capacity.
Diagram: Pie charts comparing India's installed capacity mix with France and Norway.
Limits: intermittency needs storage and flexible grids, and coal still dominates generation in India, so the mix must change gradually with a just transition.
Q5(c) · Settlement Geography · 10 marks≈ 7 min
Urban Morphology and Functional Classification of Towns
Discuss Nelson's method of functional classification of towns.
हिंदी में प्रश्न
नगरों के प्रकार्यात्मक वर्गीकरण की नेल्सन की विधि की विवेचना कीजिए।
Practise this question Settlement Geography notes
Model answer
Paper and question: Paper I, Q5(c)
Approach: Introduce Nelson's 1955 study, explain his statistical method (mean plus standard deviations), the functions used and the classes obtained, then note merits and limitations, with an Indian application.
Howard J. Nelson, in 'A Service Classification of American Cities' (Economic Geography, 1955), devised an objective, statistical method of functional classification of towns, improving on Chauncy Harris's subjective thresholds (1943).
Method: using census employment data for US cities of 10,000 and more people, he grouped the labour force into nine activities: manufacturing, retail trade, professional services, transport and communication, personal services, public administration, wholesale trade, finance-insurance-real estate, and mining. For each activity he calculated the mean percentage and the standard deviation across all cities.
A city was classed as specialised in a function if its share exceeded the mean plus one standard deviation; the degree of specialisation was marked as +1 SD, +2 SD or +3 SD. A city could be specialised in more than one function, and cities exceeding no threshold were 'diversified'.
Diagram: Normal curve of the share of manufacturing employment with thresholds at mean +1, +2 and +3 SD marked.
Merits: objective, comparable and showing degree of specialisation. Limitations: dependence on employment data, arbitrary thresholds and skewed distributions. Indian geographers such as Asok Mitra (1961 Census) have used similar methods to classify Indian towns.
Q5(d) · Population Geography · 10 marks≈ 7 min
Over-, Under- and Optimum Population; Population Theories
"Marx's view on population is more humanistic." Comment.
हिंदी में प्रश्न
"जनसंख्या पर मार्क्स का विचार अधिक मानवीय है।" टिप्पणी कीजिए।
Practise this question Population Geography notes
Model answer
Paper and question: Paper I, Q5(d)
Approach: State Marx's view of population (relative surplus population, reserve army, no universal law) against Malthus, explain why it is called humanistic, and add a brief critique.
Karl Marx rejected Malthus's natural law of population. In Capital (1867) he argued that every historical mode of production has its own law of population, and that under capitalism 'overpopulation' is a relative surplus population, created not by nature but by the system.
Capitalists replace labour with machines to raise profits, producing an industrial reserve army of unemployed workers who keep wages low. Poverty is therefore caused by unequal ownership of the means of production and distribution, not by too many people; a just socialist society could support a growing population through planning and technology.
Why humanistic: it does not blame the poor or their fertility for misery; it rejects positive checks such as famine and disease as 'natural'; it places human labour and creativity at the centre; and it seeks social justice and redistribution rather than restricting births.
Diagram: Contrast chart: Malthus (nature, food limit, blame on the poor, checks) versus Marx (capitalism, reserve army, blame on the system, redistribution).
Critique: socialist countries also faced population pressures (China adopted the one-child policy in 1980), and resource limits are real. Still, Marx's emphasis on distribution and dignity makes his view more humane.
Q5(e) · Regional Planning · 10 marks≈ 7 min
Environmental Issues and Planning for Sustainable Development
"Development planning has a component of environmental cost." Discuss.
हिंदी में प्रश्न
"विकास नियोजन में पर्यावरणीय लागत भी एक घटक है।" विवेचना कीजिए।
Practise this question Regional Planning notes
Model answer
Paper and question: Paper I, Q5(e)
Approach: Explain environmental costs of development as externalities, give Indian examples by sector, and suggest how planning can internalise these costs.
Every development project converts natural capital into man-made capital; the damage not borne by the developer is an environmental cost, or negative externality, paid by society and future generations.
Examples: dams submerge forests and displace people (Sardar Sarovar, Polavaram); mining degrades land and water (Jharia, Bellary); thermal power and vehicles pollute air, with Delhi's winter smog; the Green Revolution depleted groundwater in Punjab; Himalayan roads and tunnels destabilise slopes (Joshimath, 2023); urban expansion destroys wetlands. A World Bank study (2013) estimated India's annual cost of environmental degradation at about 5.7 per cent of GDP for 2009.
Diagram: Balance scale: benefits of development (income, jobs, infrastructure) on one side and environmental costs (pollution, biodiversity loss, health, displacement) on the other, with policy tools as the fulcrum.
Internalising costs: EIA and strategic environmental assessment, polluter-pays principle, Compensatory Afforestation Fund (CAMPA), green accounting, carbon pricing and community benefit-sharing make development sustainable. The aim is not to stop development but to count its full costs and choose designs and locations that minimise them.

Question 6 (50 marks)

Q6(a) · Perspectives in Human Geography · 20 marks≈ 14 min
Areal Differentiation, Regional Synthesis, Dichotomy and Dualism
"Regional synthesis is the crux of geographical studies." Elaborate.
हिंदी में प्रश्न
"प्रादेशिक संश्लेषण भौगोलिक अध्ययनों का मर्म है।" विस्तार कीजिए।
Practise this question Perspectives in Human Geography notes
Model answer
Paper and question: Paper I, Q6(a)
Approach: Define regional synthesis, explain why it is called the crux (unity of geography, integration of systematic branches), trace its exponents, show the method with an Indian example, and evaluate its criticism and present relevance.
Regional synthesis is the putting together of the physical and human elements of an area to understand it as a whole. While systematic geography analyses one element across space, regional geography synthesises all elements in one space; for Hettner and Hartshorne this integration was the ultimate goal of geography.
It is the crux because geography shares its subject matter with geology, climatology, economics and sociology; what is distinctively geographical is the study of their interrelationships in place. Vidal de la Blache's concept of genre de vie and the pays showed how environment, history and livelihood fuse into regional personality.
Method: (i) select the area and purpose; (ii) analyse each element systematically and map it; (iii) overlay maps to find associations; (iv) explain the causal and functional links; (v) delimit the region and describe its personality. Whittlesey's compage and Herbertson's natural regions are products of this method.
Indian example: the Chhattisgarh basin combines a shale-limestone plain, about 1,200-1,400 mm monsoon rain, paddy cultivation (the 'rice bowl'), tribal-peasant society, and mineral-based industry at Bhilai and Korba. Only synthesis explains why it is both an agrarian and an industrial region.
Map: Outline map of Chhattisgarh basin showing the Mahanadi and Seonath rivers, paddy belt, Bhilai steel plant, Korba coalfield and the surrounding plateau rim.
Criticism came during the quantitative revolution: regional synthesis was called descriptive, subjective and unable to generate laws. Overlays of too many elements were often encyclopaedic rather than explanatory.
Yet synthesis has revived through systems analysis, GIS overlay and the new regional geography, and it underpins regional planning, watershed development and agro-climatic zoning in India. Analysis without synthesis gives facts; synthesis turns them into geographical understanding, so it remains the crux of the discipline.
Q6(b) · Economic Geography · 15 marks≈ 11 min
Food Security, Nutrition and Famine
"Man-induced famines are becoming more common than nature-induced ones." Comment.
हिंदी में प्रश्न
"प्रकृति-प्रेरित अकालों की अपेक्षा मानव-प्रेरित अकाल अधिक सामान्य होते जा रहे हैं।" टिप्पणी कीजिए।
Practise this question Economic Geography notes
Model answer
Paper and question: Paper I, Q6(b)
Approach: Distinguish nature-induced from man-induced famines, show with examples why human causes (conflict, policy, markets, environmental degradation) now dominate, and comment that natural triggers still matter through vulnerability.
Nature-induced famines follow droughts, floods, cyclones or pests that destroy harvests. Man-induced famines arise from war, sieges, state policy, market failure or environmental mismanagement. The statement holds: in recent decades almost every major famine has had human action at its core.
Evidence: (i) conflict: Somalia (2011) under al-Shabaab, South Sudan (2017), Yemen's blockade, the Tigray war in Ethiopia (2020-22), Sudan's civil war and Gaza, where the IPC confirmed famine conditions in 2024-25; (ii) policy: China's Great Leap Forward (1959-61), North Korea in the 1990s; (iii) markets and prices: the 2007-08 global food price crisis; (iv) environmental degradation: overgrazing, deforestation and groundwater depletion turn droughts into famines in the Sahel.
At the same time, natural famines have declined because of early warning (FEWS NET), global food trade, buffer stocks and relief. India has avoided famine since independence despite severe droughts, through public distribution and employment schemes, supporting Sen's view that democracy and a free press prevent famine.
Diagram: Vulnerability model: natural hazard plus human vulnerability (poverty, conflict, weak governance) equals famine risk, with examples on each side.
Comment: the divide is not sharp. Climate change is increasing droughts and floods, but whether they become famines depends on human systems. Hence famine prevention lies in peace, good governance, entitlement protection and climate adaptation.
Q6(c) · Population Geography · 15 marks≈ 11 min
Migration: Causes and Consequences
Critically examine the theories on population migration.
हिंदी में प्रश्न
जनसंख्या प्रवसन पर थियोरियों का समालोचनात्मक परीक्षण कीजिए।
Practise this question Population Geography notes
Model answer
Paper and question: Paper I, Q6(c)
Approach: Classify migration theories (Ravenstein, gravity and Stouffer, Lee, Lewis and Todaro, Zelinsky, behavioural, new economics, dual labour market, world systems and network theory), give the essence of each and critically examine their strengths and weaknesses.
Migration theories try to explain who moves, where and why. They can be grouped into spatial, economic, behavioural and structural approaches.
Spatial: Ravenstein's laws (1885, 1889) stated that most migrants move short distances, in steps, towards large centres, with each current producing a counter-current. The gravity model relates flows to population size and distance, and Stouffer (1940) replaced distance with intervening opportunities. Zelinsky's mobility transition (1971) linked migration types to stages of the demographic transition.
Economic: Lewis (1954) explained rural-urban migration through surplus rural labour drawn to the modern sector; Todaro (1969) added expected income, explaining migration despite urban unemployment; the new economics of labour migration (Stark) treats migration as a household strategy to diversify risk.
Behavioural and structural: Lee's push-pull model (1966) with intervening obstacles; Wolpert's place utility; Piore's dual labour market theory (demand for migrants in low-status jobs in rich countries); world-systems theory, seeing migration as a product of capitalist penetration of the periphery; and network theory, stressing the role of kin and community chains.
Diagram: Chart arranging theories on a scale from individual (Ravenstein, Lee, Todaro, Wolpert) to household (new economics) to structural (dual labour market, world systems).
Critique: early theories are descriptive and economistic, assume rational actors and free movement, and ignore gender, politics, forced and circular migration. Structural theories neglect individual choice. No single theory suffices; an integrated framework, combining Lee's model with networks and structural forces, best explains cases such as Bihar-Punjab or Kerala-Gulf flows.

Question 7 (50 marks)

Q7(a) · Models, Theories and Laws in Human Geography · 20 marks≈ 14 min
Von Thunen, Weber, Perroux-Boudeville and Rostow
Discuss the relevance of Von Thunen's model on agricultural location in the contemporary context.
हिंदी में प्रश्न
समसामयिक संदर्भ में, कृषि अवस्थापना के वॉन थ्यूनेन के मॉडल की प्रासंगिकता की विवेचना कीजिए।
Practise this question Models, Theories and Laws in Human Geography notes
Model answer
Paper and question: Paper I, Q7(a)
Approach: Explain Von Thunen's model (assumptions, economic rent, rings, modifications by river and second market) with a diagram, then discuss its contemporary relevance at farm, regional and global scales, and its limitations.
Johann Heinrich von Thunen's The Isolated State (1826) was the first model of agricultural location. Assuming an isolated state with one central city, a uniform fertile plain, horse-cart transport with costs proportional to distance, and rational farmers, he showed that economic rent (location rent) declines with distance from the market, at different rates for different products. Land uses therefore form six rings: market gardening and dairying; forestry (fuelwood and timber were bulky); intensive arable with crop rotation; arable with long ley; three-field system; and stock ranching, beyond which lay wilderness. A navigable river elongates the rings along it, and a second, smaller city creates its own ring system.
Contemporary relevance: (i) farm and village scale: Chisholm (1962) showed intensity declining with distance from farmsteads and villages in Europe and India; (ii) peri-urban belts: milk, vegetables, poultry and flowers surround Delhi, Mumbai, Bengaluru and Kolkata, while grains dominate farther away; (iii) regional scale: Uruguay's land use around Montevideo has been cited as approximating the rings; (iv) global scale: Peet (1969) saw the world economy as a von Thunen system around the North Atlantic core, with ranching in Argentina and Australia; (v) the bid-rent principle underlies Alonso's urban land-use theory.
Diagram: Von Thunen's rings in an isolated state, beside the modified pattern with a navigable river and a satellite town, and a graph of rent lines for three crops.
Limitations: modern transport, refrigeration and air cargo shrink distance; government policies (MSP, procurement, subsidised electricity in Punjab) and irrigation shape cropping more than distance; physical variation, land tenure, culture and global markets matter; forestry no longer lies near cities; and speculative urban expansion reverses intensity near cities (Sinclair, 1967).
Hence the model's rings rarely appear literally, but its central insight, that distance and accessibility shape land rent and use, remains highly relevant to agricultural and urban geography.
Q7(b) · Perspectives in Human Geography · 15 marks≈ 11 min
Languages, Religions, Cultural Regions and the Human Development Index
"Cultural regions are the most suited units to study the diversity of an area." Comment.
हिंदी में प्रश्न
"किसी क्षेत्र की विविधता का अध्ययन करने के लिए सांस्कृतिक प्रदेश सर्वाधिक उपयुक्त इकाइयाँ हैं।" टिप्पणी कीजिए।
Practise this question Perspectives in Human Geography notes
Model answer
Paper and question: Paper I, Q7(b)
Approach: Define cultural region (formal, functional, vernacular), explain why it suits the study of diversity, illustrate with Indian and world examples, and comment on its limitations.
A cultural region is an area of relative homogeneity in cultural traits such as language, religion, ethnicity, livelihood, architecture and customs. Cultural regions may be formal (uniform traits, such as the Bengali-speaking region), functional (organised around a centre, such as the pilgrimage field of Puri) or vernacular (perceived by people, such as Bundelkhand or Purvanchal).
Why they suit the study of diversity: (i) culture integrates many elements, so a cultural region captures the combined personality of an area, as Vidal de la Blache's genre de vie suggested; (ii) cultural regions reveal the historical layering of migrations and empires, for example Dravidian south India versus Indo-Aryan north; (iii) they reflect people-environment relations: the pastoral Ladakhi culture, the rice-fish culture of Bengal and the desert culture of Marwar; (iv) they are useful in planning, as the linguistic reorganisation of Indian states (1956) and the Sixth Schedule areas of the North-east show.
Map: Sketch map of India showing major cultural regions: Indo-Gangetic Hindi belt, Dravidian south, Bengal-Assam, Himalayan Buddhist belt, tribal central India, and North-eastern Mongoloid region.
Limitations: boundaries are transitional; cultures overlap and change (Mumbai is multilingual); choice of criteria is subjective; and economic, physical or administrative regions may matter more for some purposes.
Hence cultural regions are among the most suitable, though not the only, units for studying diversity, especially in a plural country like India.
Q7(c) · Perspectives in Human Geography · 15 marks≈ 11 min
Radical, Behavioural, Humanistic and Welfare Approaches
Discuss the approaches to the study of behavioural geography.
हिंदी में प्रश्न
व्यवहारपरक भूगोल के अध्ययन के उपागमों की विवेचना कीजिए।
Practise this question Perspectives in Human Geography notes
Model answer
Paper and question: Paper I, Q7(c)
Approach: Define behavioural geography, then discuss its main approaches (perception and cognition, decision-making, mental maps, time-geography, hazard perception, spatial search) with geographers and examples, and evaluate.
Behavioural geography studies the cognitive and decision-making processes behind spatial behaviour. It emerged in the 1960s as a response to the 'rational economic man' of quantitative models, assuming that people act on the environment as they perceive it.
Approaches: (i) perception and cognition: Kirk's behavioural environment (1963) and Lowenthal's 'geography, experience and imagination' (1961); (ii) decision-making: Wolpert (1964) on satisficing Swedish farmers, and Pred's behavioural matrix (1967) relating information and ability to use it; (iii) mental maps: Lynch's The Image of the City (1960) with paths, edges, districts, nodes and landmarks, and Gould and White's residential preference maps (1974).
(iv) Hazard perception: Gilbert White and Kates showed how floodplain dwellers judge risk; (v) spatial search and migration decisions: Wolpert's place utility and Brown and Moore's model of intra-urban migration; (vi) time-geography (Hagerstrand), studying constraints on daily activity paths.
Diagram: Pred's behavioural matrix: axes of information and ability, with decision-makers scattered and optimal location reached only near the top corner.
Methods include questionnaires, sketch maps, semantic differential scales and repertory grids. Indian studies cover farmers' adoption of HYV seeds and residents' risk perception in flood-prone Assam.
Critics call it individualistic and weak on structural constraints, but it made geography more realistic about human choice.

Question 8 (50 marks)

Q8(a) · Perspectives in Human Geography · 20 marks≈ 14 min
Environmentalism, Possibilism and Neo-determinism
"There is a rejuvenation of environmentalism as a paradigm in geographical studies." Comment.
हिंदी में प्रश्न
"भौगोलिक अध्ययनों में एक प्रतिमान (पैराडाइम) के रूप में पर्यावरणवाद का पुनर्नवीकरण हुआ है।" टिप्पणी कीजिए।
Practise this question Perspectives in Human Geography notes
Model answer
Paper and question: Paper I, Q8(a)
Approach: Recall classical environmentalism and why it declined, then show the forms of its rejuvenation (ecological approach, hazards, climate change, political ecology, sustainability) with examples, and comment on how the new version differs from the old.
Environmentalism in its classical form (environmental determinism) held that the physical environment controls human activity. Ratzel's Anthropogeographie, Ellen Churchill Semple and Ellsworth Huntington's climatic theory of civilisation represent it. It declined after the 1920s because it was linked with racism and colonial justification, and possibilism and later spatial science dominated.
Since the 1960s-70s there has been a clear rejuvenation, but in a new form. Rachel Carson's Silent Spring (1962), the Club of Rome's Limits to Growth (1972) and the Stockholm Conference (1972) brought the environment back to the centre of geography.
Forms of revival: (i) ecological approach and ecosystem studies (Stoddart, 1965) treating man as part of the system; (ii) hazard research, from Gilbert White's floodplain studies to today's disaster geography; (iii) climate change geography: IPCC reports show how warming shapes agriculture, migration and health; (iv) political ecology (Blaikie and Brookfield, 1987) linking environmental degradation with power and poverty; (v) sustainability science and the planetary boundaries framework.
Indian examples: studies on Himalayan land-use and the Chipko movement, desertification in western Rajasthan, the 2018 Kerala floods, and the Sundarbans' vulnerability to cyclones and sea-level rise all place environment at the core of explanation.
Diagram: Pendulum diagram swinging from determinism (1900) to possibilism (1930) to spatial science (1960) and back to an 'environment-society interaction' position (1970 onwards), with labels for each phase.
The new environmentalism is not deterministic: it stresses two-way interaction, human impact on nature (Anthropocene), and vulnerability shaped by society. Thus the statement is valid: environmentalism has returned as a leading paradigm, but as interactionist and normative rather than causal determinism.
Q8(b) · Regional Planning · 15 marks≈ 11 min
Regional Imbalances and Development Strategies
"Geographical traits lead to regional imbalances." Examine.
हिंदी में प्रश्न
"भौगोलिक विशेषक (ट्रेट) प्रादेशिक असंतुलन को जन्म देते हैं।" परीक्षण कीजिए।
Practise this question Regional Planning notes
Model answer
Paper and question: Paper I, Q8(b)
Approach: Explain how geographical traits (relief, climate, soil, water, minerals, location, hazards) create regional imbalances with Indian and world examples, then examine the limits of this view (human, historical and policy factors), and conclude.
Regional imbalance is the uneven distribution of development across space. Geographical traits form the initial conditions on which development builds.
Geographical traits: (i) relief: plains attract dense settlement, agriculture and transport, while mountains and plateaus such as the Himalaya, the North-east hills and Chota Nagpur remain sparsely developed; (ii) climate and water: assured irrigation and rainfall support high productivity in Punjab and coastal deltas, while arid western Rajasthan and drought-prone Marathwada lag; (iii) soils: fertile alluvium versus laterite and rocky soils; (iv) minerals: coal and iron ore created industrial belts around Jamshedpur and Durgapur; (v) location: coastal access favoured Mumbai, Chennai and Gujarat's ports, while landlocked and remote areas lag, as in landlocked African states; (vi) hazards: floods in north Bihar and Assam repeatedly destroy assets.
Map: Outline map of India showing developed regions (Punjab-Haryana plain, Gujarat-Maharashtra coast, Tamil Nadu) and lagging regions (Bundelkhand, KBK, north Bihar floodplain, North-east hills), with relief and rainfall notes.
Limits: geography is not destiny. Mineral-rich Jharkhand and Odisha remain poor, a 'resource curse', while resource-poor Singapore, Japan and Kerala's human development show the power of institutions, education and policy. Colonial history, investment decisions, land reforms and governance often outweigh physical traits; Myrdal's cumulative causation explains how small initial advantages grow.
Hence geographical traits contribute to regional imbalances but interact with historical, economic and political factors; planning can overcome many physical handicaps, as irrigation in the Indira Gandhi Canal area shows.
Q8(c) · Population Geography · 15 marks≈ 11 min
Growth, Distribution and Demographic Attributes of World Population
"Vital statistics are necessary ingredients for development planning." Elaborate.
हिंदी में प्रश्न
"विकास नियोजन के लिए जन्म-मरण के आँकड़े आवश्यक संघटक हैं।" सविस्तार समझाइए।
Practise this question Population Geography notes
Model answer
Paper and question: Paper I, Q8(c)
Approach: Define vital statistics and their sources in India, then elaborate how each (births, deaths, IMR, MMR, marriages, migration) feeds planning in health, education, housing, food and representation, and note data gaps.
Vital statistics are data on vital events: births, deaths, foetal deaths, marriages and divorces, together with derived rates such as the crude birth and death rates, infant mortality rate (IMR), maternal mortality ratio (MMR) and total fertility rate. In India they come from the Civil Registration System under the Registration of Births and Deaths Act, 1969 (amended in 2023 to create digital records), the Sample Registration System (SRS), the Census and the National Family Health Survey.
Uses in planning: (i) health: IMR (27 per 1,000 live births, SRS 2021) and MMR (93 per lakh live births, SRS 2019-21) identify where to strengthen maternal and child care; high-burden states such as Madhya Pradesh, Uttar Pradesh and Assam get priority under the National Health Mission; (ii) education: birth cohorts forecast school enrolment and teacher needs; (iii) food and nutrition: population projections set foodgrain and PDS requirements; (iv) housing, water and urban services; (v) family planning targets based on TFR; (vi) delimitation of constituencies and allocation of central funds by the Finance Commission.
Diagram: Flow chart: registration of vital events → rates and indicators → projections → sectoral plans (health, education, food, housing, pensions) → monitoring of SDG targets.
Gaps: incomplete registration of deaths and their causes in some states, delays in the Census (the 2021 round postponed, with the next Census referenced to 1 March 2027) and weak data on migration. The Civil Registration System's digitalisation should improve timeliness.
Without reliable vital statistics, planning becomes guesswork; they are indeed the basic ingredient of development planning.

UPSC Mains 2015 Geography Paper II