Environmental Sciences Past Paper 2022

Q2. Why are environmentalists arc interested in wetlands?Descril5e various mechanisms for sustainable management of wetlands in Pakistan.

Q3. Write in detail the history and main features of the fndus Water Treaty with a special focus on its significance in the cun-ent scenario of water stress in Pakistan.

Q4. What is anaerobic degradation? Describe-the four key stages in the anaerobic degradation of organic waste.

Q5. What are che potential environmemal impacts of China Pakistan Economic Corridor (CPEC)?

Q6. Jf the population of the top carnivores declines, what will happen to the landscape ecosystems?

Q7. What i the ozone layer? E I?lain its depletion resulting from the atmospheric NO, H, OH, and Cl.

Q8. W.. rite short notes on any FOUR of the following:
I. GTS and RS
2. Biodiversity loss
3. Atmospheric smog
4. Population
5. Air Pollution
6. Green House Gases

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