Geography 2024 Paper I 50 marks Describe

Q4

(a) How is carbon neutrality essential for future environmental conservation ? Describe various efforts taken by nations in this regard. 20 (b) What is a Yazoo stream ? Why are Yazoo basins the areas of repeated flooding ? Give examples of Yazoo stream/areas from various parts of the world. 15 (c) "The latitudinal gradient in species richness is an important geographic trend in biodiversity." Examine the statement. 15

हिंदी में प्रश्न पढ़ें

(a) भविष्य में पर्यावरणीय संरक्षण के लिए कार्बन तटस्थता कैसे आवश्यक है ? इसके संबंध में राष्ट्रों द्वारा किए गए विभिन्न प्रयासों का वर्णन कीजिए । 20 (b) याजू धारा किसे कहते हैं ? याजू द्रोणी बार-बार बाढ़ के क्षेत्र क्यों हैं ? विश्व के विभिन्न भागों से याजू धारा/क्षेत्रों के उदाहरण दीजिए । 15 (c) "प्रजातियों की समृद्धि में अक्षांशीय प्रवणता, जैव-विविधता में एक महत्वपूर्ण भौगोलिक प्रवृत्ति है ।" कथन का परीक्षण कीजिए । 15

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Directive word: Describe

This question asks you to describe. The directive word signals the depth of analysis expected, the structure of your answer, and the weight of evidence you must bring.

See our UPSC directive words guide for a full breakdown of how to respond to each command word.

How this answer will be evaluated

Approach

The primary directive is 'describe' for part (a), with 'what/why' for (b) and 'examine' for (c). Allocate approximately 40% of time/words to part (a) given its 20 marks, and 30% each to parts (b) and (c). Structure: brief integrated introduction on environmental-geographic interlinkages; then three distinct sections addressing each sub-part with clear sub-headings; conclude with synthesis on how carbon neutrality, fluvial dynamics, and biodiversity gradients collectively inform sustainable development strategies.

Key points expected

  • Part (a): Definition of carbon neutrality (net-zero CO2 emissions) and its linkage to climate change mitigation, ecosystem resilience, and planetary boundaries; national efforts including India's Panchamrit/NAPCC, EU Green Deal, China's 2060 target, USA's re-entry into Paris Agreement, and Bhutan's carbon-negative status
  • Part (b): Definition of Yazoo stream as tributary prevented from joining main river by natural levees; explanation of backwater effect, aggradation, and repeated flooding due to impeded drainage and sediment accumulation; global examples including Mississippi Yazoo basin (USA), Kosi-Yamuna interfluve (India), and similar formations in Amazon, Ganga-Brahmaputra plains
  • Part (c): Explanation of latitudinal gradient (decreasing species richness from tropics to poles) with mechanisms including evolutionary time hypothesis, area effects, climatic stability, and productivity; critical examination of exceptions (marine biodiversity peaks in mid-latitudes, desert/arid zone anomalies, Himalayan biodiversity hotspot)
  • Interlinkage: How carbon neutrality efforts affect biodiversity gradients through habitat preservation; how fluvial dynamics influence carbon sequestration in floodplain ecosystems
  • Policy integration: India's commitments under UNFCCC, Ramsar sites in Yazoo-type wetlands, and biodiversity conservation strategies under CBD and National Biodiversity Action Plan

Evaluation rubric

DimensionWeightMax marksExcellentAveragePoor
Concept correctness22%11Precise definitions across all parts: carbon neutrality distinguished from net-zero and climate neutrality; Yazoo stream correctly identified as aggradational tributary blocked by levees, not merely a distributary; latitudinal gradient explained through multiple validated hypotheses (Rapoport's rule, species-energy theory) with acknowledgment of marine-terrestrial divergenceBasic definitions provided but with minor errors (e.g., conflating carbon neutrality with zero emissions, describing Yazoo as any tributary, or presenting latitudinal gradient as universal law without exceptions)Fundamental misconceptions: carbon neutrality equated with carbon sequestration only; Yazoo stream confused with oxbow lake or delta distributary; latitudinal gradient stated without causal mechanisms or presented as absolute pattern
Map / diagram18%9At least two relevant diagrams: for (b) a sketch showing natural levee formation, backwater slope, and Yazoo stream parallel to main river; for (c) a world map showing biodiversity hotspots or species richness contours with latitudinal variation; clear labeling and integration with textOne diagram present but incomplete (e.g., Yazoo stream shown without levee context, or biodiversity map without specific latitudinal annotation); OR two diagrams with poor labelingNo diagrams, or diagrams that misrepresent concepts (e.g., Yazoo shown as perpendicular tributary, or biodiversity gradient reversed); illegible sketches without geographic orientation
Indian regional examples18%9Rich Indian exemplification: for (a) India's Panchamrit, National Action Plan on Climate Change, and state-level initiatives; for (b) Kosi's marginal embankments creating Yazoo-type conditions, or Yamuna floodplain tributaries; for (c) Western Ghats vs. Himalayan biodiversity gradients, latitudinal comparison of Andaman-Nicobar vs. Kashmir floraSome Indian examples mentioned but limited to one part (typically carbon neutrality), or generic references without specificity (e.g., 'India is reducing emissions' without naming policies)No Indian examples, or inappropriate examples (e.g., citing Thar desert for high biodiversity without context, or confusing Yazoo with Indian river distributaries like the Hooghly)
Spatial analysis22%11Explicit spatial reasoning: for (a) geographic variation in national carbon budgets and renewable potential; for (b) geomorphological process analysis of levee-aggradation-backwater dynamics with cross-profile diagrams; for (c) spatial patterns explained through area-climate interactions, with recognition of longitudinal and altitudinal complications to latitudinal trendsSome spatial awareness but descriptive rather than analytical; mentions patterns without explaining underlying geographic processes; treats Yazoo flooding as simple hazard without geomorphological causationAspatial treatment: carbon neutrality discussed only as policy concept without geographic differentiation; Yazoo flooding attributed to 'heavy rainfall' without fluvial process; latitudinal gradient stated as fact without spatial explanation
Application / policy20%10Integrated policy analysis: carbon neutrality linked to NDCs, carbon markets, and climate justice; Yazoo basin management through integrated floodplain zoning, wetland conservation (Ramsar designation); biodiversity conservation through protected area networks that account for latitudinal gradients (30x30 target, biosphere reserves)Policy mentions present but fragmented: lists international agreements without application to specific contexts; or describes flood control/engineering without conservation integrationNo policy application, or purely theoretical treatment; irrelevant policy discussion (e.g., detailed trade policy unrelated to carbon neutrality); or conflation of carbon neutrality with unrelated environmental policies

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