FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION – 2022
FOR RECRUITMENT TO POST IN BS – 17
UNDER THE FEDERAL GOVERNMENT
ENVIRONMENTAL SCIENCE
TIME ALLOWED: THREE HOURS
PART – I (MCQs): MAXIMUM 30 MINUTES
PART – I (MCQs): MAXIMUM MARKS = 20
PART – II MAXIMUM MARKS = 80
NOTE:
(i) Part – II is to be attempted on the separate Answer Book.
(ii) Attempt ONLY FOUR questions from PART – II. ALL questions carry EQUAL marks.
(iii) All the parts (if any) of each Question must be attempted at one place instead of at different places.
(iv) Candidate must write Q. No. in the Answer Book in Accordance with Q. No. in the Q. Paper.
(v) No Page / Space be left blank between the answers. All the blank pages of Answer Book must be crossed.
(iv) Extra attempt of any question or any part of the attempted question will not be considered.
PART-II
Q. No. 2. Why environmentalists are interested in wetlands? Describe various mechanisms for sustainable management of wetlands in Pakistan. (20)
Q. No. 3. Write in detail the history and main features of Indus Water Treaty with a special focus on its significance in the current scenario of water stress in Pakistan. (20)
Q. No. 4. What is anaerobic degradation? Describe the thin key stages in anaerobic degradation of organic waste. (20)
Q. No. 5. What are the potential environmental impacts of China Pakistan Economic Corridor (CPEC)? (20)
Q. No. 6. If the population of the top carnivores declines, what will happen to the landscape / ecosystems? (20)
Q. No. 7. What is the ozone (O3) layer? Explain its depletion resulting from the atmospheric NO•, H•, OH•, and Cl•. (20)
Q. No. 8. Write short notes on any FOUR of the following: (5 each) (20)
(i) GIS and RS (ii) Biodiversity loss (iii) Atmospheric smog (iv) Population (v) Green House Gases (vi) Air Pollution