Environmental Sciences · 2022

CSS 2022 Environmental Science Paper

7 questions from this paper.

  1. Q1
    Why are environmentalists interested in wetlands? Describe various mechanisms for sustainable management of wetlands in Pakistan.
    Past paper Wetlands Management 20 marks
  2. Q2
    Write in detail the history and main features of the Indus Water Treaty with a special focus on its significance in the current scenario of water stress in Pakistan.
    Past paper Indus Water Treaty 20 marks
  3. Q3
    What is anaerobic degradation? Describe the four key stages in the anaerobic degradation of organic waste.
    Past paper Waste Treatment 20 marks
  4. Q4
    What are the potential environmental impacts of the China-Pakistan Economic Corridor (CPEC)?
    Past paper CPEC Environmental Impacts 20 marks
  5. Q5
    If the population of top carnivores declines, what will happen to the landscape ecosystems?
    Past paper Ecosystem Dynamics 20 marks
  6. Q6
    What is the ozone layer? Explain its depletion resulting from atmospheric NO, H, OH, and Cl.
    Past paper Atmospheric Chemistry 20 marks
  7. Q7
    Write short notes on any FOUR: (i) GIS and RS; (ii) Biodiversity loss; (iii) Atmospheric smog; (iv) Population; (v) Air pollution; (vi) Greenhouse gases.
    Past paper Short Notes 20 marks

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