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Question
The depletion of ozone layer in the upper atmosphere is mainly due to the emission of :
(a) unburnt hydrocarbons
(b) chlorofluorocarbons
(c) greenhouse gases
(d) ultraviolet radiations
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Solution
chlorofluorocarbons
Chlorofluorocarbons emitted by air-conditioners, refrigerators and jet planes cause the depletion of the ozone layer.
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