CSS Environmental Sciences Past Paper 2020
PART-2(Subjective) 80 Marks
Attempt ONLY FOUR Questions from PART-II. (20×4)
PART-II
Q. No. 2
(a) Write the main principles of Rio Summit 1992.
(b) Discuss the dose-response relationship in Environmental Toxicology.
Q. No. 3
(a) Write the physico-chemical parameters of wastewater and also explain wastewater treatment technologies.
(b) Discuss the major outcomes of Clean Development Mechanisms (CDM).
Q. No. 4
(a) Discuss in detail the Hospital Waste Management codes of Practice.
(b) Enlist the conventions and treaties passed in Agenda 21.
Q. No. 5
(a) Define and explain the Eutrophication of a water body.
(b) What are technological approaches to Environmental management?
Q. No. 6
(a) What are the main steps of conducting Environmental Impact Assessment (EIA)?
(b) Discuss briefly noise pollution.
Q. No. 7
(a) What is the green revolution? Give a brief account of the green revolution in Pakistan.
(b) Define Environmental Economics and explain briefly the interrelationship between Environment and Economics.
Q. No. 8
(a) Discuss the solid waste disposal techniques.
(b) Write in detail the effect of climate change on natural and societal systems.