Question 1
What are the various constituents of domestic sewage? Discuss the effects of sewage discharge on a river.
Question 2
List all the wastes that you generate, at home, school or during your Trips to other places, could you very easily reduce? Which would be Difficult or rather impossible to reduce?
Question 3
Discuss the causes and effects of global warming. What measures need to be taken to control global warming?
Question 5
Write critical notes on the following:
(a) Eutrophication
(b) Biological magnification
(c) Groundwater depletion and ways for its replenishment
Question 6
Why ozone hole forms over Antarctica? How will enhanced ultraviolet Radiations affect us?
Question 9
Discuss briefly the following:
(a) Radioactive wastes
(b) Defunct ships and e-wastes
(c) Municipal solid wastes
Question 10
What initiatives were taken for reducing vehicular air pollution in Delhi? Has air quality improved in Delhi?
Question 11
Discuss briefly the following:
(a) Greenhouse gases
(b) Catalytic converter
(c) Ultraviolet B
