A) increase temperature
B) deplete ozone
C) affect environment
D) affect human body
Correct Answer: B
Solution :
The ozone layer lie in the stratosphere between 20-26 km above the sea level. The chlorofluorocarbons produce active chlorine radicals in the presence of UV radiation. These active chlorine radicals catalytically destroy ozone layer converting into oxygen. Each chlorine radical can destroy as many as 10000 ozone molecules. Green-house effect or global warming increases the temperature of earth because the earths atmosphere with high concentration of green house gases absorb infrared radiation traping heat near the earths surface.
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