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Environmental Science CSS Paper 2021

Q. No. 2. (a) Write the main principles of Rio Summit 1992.

(b) Discuss the dose response relationship in Environmental Toxicology. (10) (10) (20)

Q. No. 3. (a) Write the physico chemical parameters of waste water and also explain waste water treatment technologies.

(b) Discuss the major outcomes of Clean Development Mechanisms (CDM). (10) (10) (20)

Q. No. 4. (a) Discuss in detail the Hospital Waste Management codes of Practice.

(b) Enlist the conventions and treaties passed in Agenda 21. (10) (10) (20)

Q. No. 5. (a) Define and explain the Eutrophication of water body.

(b) What are technological approaches to Environmental management? (10) (10) (20)

Q. No. 6. (a) What are main steps of conduction Environmental Impact Assessment (EIA)?

(b) Discuses briefly noise pollution. (10) (10) (20)

Q. No. 7. (a) What is green revolution? Give a brief account of green revolution in Pakistan.

(b) Define Environmental Economics and explain briefly the interrelationship between Environment and Economics. (10) (10) (20)

Q. No. 8. (a) Discuss the solid waste disposal technique.

(b) Write in detail the effect of climate change on natural and societal systems. (10) (10) (20)

Environmental Science CSS Paper 2019