Home › AKTU PYQ › Environment and Ecology › Exam Strategy

Environment and Ecology (BAS104) AKTU exam strategy

Focus on Unit 1 (Environment and Ecosystem) and Unit 2 (Natural Resources). Together they account for about 51 marks among all questions printed per paper. Unit 5 (Environmental Protection) is safest to skim if you're short on time.

Unit priority

  • Unit 1 (Environment and Ecosystem) – Must Prepare, 27 marks avg. Unit 1 (Environment and Ecosystem) averages 27 marks per paper — one of the heaviest units in this subject. Environment Definition and Types and Ecosystem Structure and Types have appeared in every paper analysed — these are must-dos. Must-do: Environment Definition and Types, Ecosystem Structure and Types, Human Activities on Environment, Environmental Impact Assessment.
  • Unit 2 (Natural Resources) – High Priority, 24 marks avg. Unit 2 (Natural Resources) averages 24 marks per paper — one of the heaviest units in this subject. Biogeochemical Material Cycles and Energy Resources have appeared in every paper analysed — these are must-dos. Must-do: Biogeochemical Material Cycles, Water Resources, Energy Resources, Forest Resources.
  • Unit 3 (Environmental Pollution) – High Priority, 23 marks avg. Unit 3 (Environmental Pollution) averages 23 marks per paper — one of the heaviest units in this subject. Water Pollution and Solid Waste Management have appeared in every paper analysed — these are must-dos. Must-do: Water Pollution, Solid Waste Management, Air Pollution, Noise Pollution.
  • Unit 4 (Current Environmental Issues) – Medium Priority, 23 marks avg. Unit 4 (Current Environmental Issues) averages 23 marks per paper — one of the heaviest units in this subject. Global Warming and Climate Change and Population Growth and Pollution have appeared in every paper analysed — these are must-dos. Must-do: Global Warming and Climate Change, Population Growth and Pollution, Acid Rain, Ozone Layer Depletion.
  • Unit 5 (Environmental Protection) – Safe to Skim, 22 marks avg. Unit 5 (Environmental Protection) averages 22 marks per paper — one of the heaviest units in this subject. Environmental Protection Act 1986 and NGO Initiatives Environment have appeared in every paper analysed — these are must-dos. Must-do: Environmental Protection Act 1986, Human Population and Environment, Environmental Education Awareness, NGO Initiatives Environment.

Topics AKTU keeps repeating

  • Environment Definition and Types: Asked in 4 out of 6 papers. If you prepare only one topic from its unit, make it this one.
  • Ecosystem Structure and Types: Asked in 4 out of 6 papers. If you prepare only one topic from its unit, make it this one.

Short on time?

  • Among all units, Unit 5 (Environmental Protection) is the lowest priority at 22M avg. If you're running low on time, prioritize the top 3 units and give this one a quick read. But even here — Environmental Protection Act 1986, NGO Initiatives Environment, Human Population and Environment are high-repeat topics. Cover these at minimum to stay safe.

How the paper is marked

  • Section A: 7 questions × 2 marks = 14 marks. Short definition/concept questions from all 5 units. Prepare 2–3 key definitions per unit — this section is the easiest 14 marks you can secure.
  • Section B: Attempt any 3 of 5 questions × 7 marks = 21 marks. Choose the 3 questions from units you've prepared most. Don't attempt all 5 — pick your strongest 3 and write them well.
  • Section C: 5 OR-pairs × 7 marks = 35 marks. One pair per unit — you must attempt all 5. This is where the exam is won or lost. Focus your deep preparation on the top 3 priority units.

Exam-day tips

  • Start with Section A to build momentum — budget 15–20 minutes max for all 7 questions.
  • In Section B, Unit 1 (Environment and Ecosystem) questions have the highest repeat rate — always attempt that one first.
  • For Section C OR-pairs, read both options before choosing — sometimes the 'b' option is simpler despite appearing longer.
  • If you've prepared the VERY LIKELY topics, you can comfortably score 50+ marks without touching any new topic on exam day.
  • This strategy is built on 6 past papers — the patterns here are highly reliable.