CSS Environmental Science Paper 2017

Table of Contents

CSS Environmental Science Paper 2017

Q. No. 2. (A) How the hazardous material is defined, identified and differentiated from (10) (20)
the toxic material? Explain the environmental problems and health risks
linked with the hazardous waste.
(B) What stands for CERCLA and why it is related with hazardous waste? (10)

Q. No. 3. Which of the GHGs are the most significant contributors to the global warming? How
do they work? And what mitigation steps could be taken to stabilize the GHG content
of the atmosphere? (20)

Q. No. 4. (A) Discuss the global efforts that are currently in place to protect our ozone
shield. What evidence is there that such efforts have been effective? (12) (20)
(B) Discuss and comment on the social and economic dimensions of
Agenda 21. (8)

Q. No. 5. Trace the political history of UNFCCC and the Kyoto Protocol. Do you think that the
UNFCCC (2015) conference in Paris was the next step in reaching an agreement on
climate change? (20)

Q. No. 6. (A) What do you understand by climate and microclimate? (4)

(B) How do forest burning and land clearing affect the global climate? (8)
(C) What impact would changing climate have on the ‘ecosystem in general’
and ‘coastal environment in particular’? (20) (8)

Q. No. 7. (A) What is genetic engineering or biotechnology and how it may affect theagriculture and the environment? (12) (20)
(B) What is the relation between poverty and food security? (8)

Q. No. 8. Write short notes on any FOUR of the following: (5 each)

(a) E-waste (b) Superfund
(c) Eutrophication (d) Carbon foot print
(e) Smog (f) Energy from biomass (20)