Identify the wrong statements in the following:
(1) Chlorofluorocarbons are responsible for ozone layer depletion
(2) Greenhouse effect is responsible for global warming
(3) Ozone layer does not permit infrared radiation from the sun to reach the earth
(4) Acid rains is mostly because of oxides of nitrogen and sulphur
(1) Chlorofluorocarbons are responsible for ozone layer depletion
(2) Greenhouse effect is responsible for global warming
(3) Ozone layer does not permit infrared radiation from the sun to reach the earth
(4) Acid rains is mostly because of oxides of nitrogen and sulphur
- (A)Statement (1)
- (B)Statement (2)
- (C)Statement (3)✓ Correct
- (D)Statement (4)
Answer: (C)
Solution
The ozone layer shields the Earth by absorbing harmful ultraviolet radiation, not infrared, so the claim that it blocks the Sun's infrared from reaching the ground is the incorrect one. The other three statements stand: chlorofluorocarbons do deplete ozone, the greenhouse effect does drive global warming, and acid rain does arise chiefly from the oxides of nitrogen and sulphur.
JEE Main · 2008 · 27 Apr 2008 · Offline · Single correct option