CSS Environmental Sciences Past Paper 2020

Instructions specific to this paper

• Attempt ONLY FOUR questions from PART-II. ALL questions carry EQUAL marks.

Questions

1. Q. 220 marks

   (a) Write the main principles of Rio Summit 1992. (10) (b) Discuss the dose response relationship in Environmental Toxicology. (10)

2. Q. 320 marks

   (a) Write the physico chemical parameters of waste water and also explain (10) waste water treatment technologies. (b) Discuss the major outcomes of Clean Development Mechanisms (CDM). (10)

3. Q. 420 marks

   (a) Discuss in detail the Hospital Waste Management codes of Practice. (10) (b) Enlist the conventions and treaties passed in Agenda 21. (10)

4. Q. 520 marks

   (a) Define and explain the Eutrophication of water body. (10) (b) What are technological approaches to Environmental management? (10)

5. Q. 610 marks

   (a) What are main steps of conduction Environmental Impact Assessment (EIA)? (10) (20) (b) Discuses briefly noise pollution.

6. Q. 710 marks

   (a) What is green revolution? Give a brief account of green revolution in Pakistan. (b) Define Environmental Economics and explain briefly the interrelationship (10) (20) between Environment and Economics.

7. Q. 820 marks

   (a) Discuss the solid waste disposal technique. (10) (b) Write in detail the effect of climate change on natural and societal systems. (10)

Standard FPSC instructions

Printed on this and every CSS paper.

• Part-II is to be attempted on the separate Answer Book.
• All the parts (if any) of each question must be attempted at one place instead of at different places.
• Write Q. No. in the Answer Book in accordance with Q. No. in the question paper.
• No page/space be left blank between the answers. All the blank pages of the Answer Book must be crossed.
• Extra attempt of any question or any part of the attempted question will not be considered.