Environmental C...

Acid rain occurs above the area where

Exposure of UV radiations causes

Agricultural use of DDT was banned in India during

Which one contains secondary pollutants?

Which of the following statement/s is/are correct with regard to ozone depletion:
1. The ozone hole is measured in terms of ozone concentrations, which is expressed in Dobson units.
2. The major cause for ozone depletion is the presence of CFCs in the stratosphere - CFCs are entirely man-made and not found naturally.

Study the following statements regarding acid rain and select the incorrect ones:
(i) Acid rain refers to the rainfall and other forms of precipitation with a pH of less than $$5$$
(ii) Oxides of sulphur and nitrogen are released from automobile exhausts, industries, power plants, etc.
(iii) These oxides of sulphur and nitrogen, may react with water in the air and form sulphuric acid $$(H_2SO_4)$$ and nitric acid $$(HNO_3)$$.
(iv) Acid rain has harmful effects on animals and human beings but no characteristic impact on plants.

Depletion of the Ozone layer in the stratosphere is caused by.

Temperature inversions are responsible for

Storm is caused by the _______________.

Petroleum wastes are degraded by the action of ______________.