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Environment and Ecology Unit 2 – Natural Resources: AKTU previous year questions

31 AKTU questions from Unit 2 (Natural Resources) asked in 2023–2026, tagged by marks, year and topic. In short: about 24 marks of every paper come from this unit; the most asked topic is Biogeochemical Material Cycles (9 times); 21 questions came back in a later year. The latest ones are listed below; on the page you can filter them by 2-mark or long questions, topic and repeats.

Unit 2 previous year questions

  • What is non-conventional energy? Give one example. (2 marks, 2026, Energy Resources)
  • Explain the classification of natural resources and discuss their sustainable utilization. (7 marks, 2026, Natural Resources)
  • Explain carbon, nitrogen and sulfur cycles with neat diagrams and describe their environmental significance. (7 marks, 2026, Material/Biogeochemical Cycles)
  • Describe forest resources, causes of deforestation and its environmental and social impacts. (7 marks, 2026, Forest Resources)
  • What is the difference between renewable and non-renewable resources? (2 marks, 2025, Energy Resources)
  • What role does the nitrogen cycle play in ecosystems? (2 marks, 2025, Material/Biogeochemical Cycles)
  • What are the key parameters used to assess water quality? What are the major sources of water pollution? (7 marks, 2025, Water Resources)
  • Describe the carbon and nitrogen cycles. (7 marks, 2025, Material/Biogeochemical Cycles)
  • Discuss the availability, sources, and quality aspects of water resources. Explain the problems associated with fluoride and arsenic in drinking water. (7 marks, 2025, Water Resources)
  • What are the environmental impacts of mining and processing mineral resources? (7 marks, 2025, Mineral Resources)
  • Explain the environmental impact of energy consumption. (7 marks, 2025, Energy Resources)
  • What are the economic, social, and environmental values of forests? (7 marks, 2025, Forest Resources)

Most asked Unit 2 topics

  • Biogeochemical Material Cycles – asked 9 times
  • Water Resources – asked 8 times
  • Energy Resources – asked 6 times

Unit 2 question pattern

  • 2-mark questions: 10 asked in 2023–2026
  • 7-mark questions: 21 asked in 2023–2026
  • About 24 marks from Unit 2 in every paper
  • 21 questions were asked again in a later year

Unit 2 questions year by year

  • 2026: 4 Unit 2 questions asked (23 marks across that year's papers)
  • 2025: 8 Unit 2 questions asked (46 marks across that year's papers)
  • 2024: 10 Unit 2 questions asked (50 marks across that year's papers)
  • 2023: 9 Unit 2 questions asked (48 marks across that year's papers)