1.

The depletion of the ozone layer in the upper atmosphere is mainly due to the emission of : (a) unburnt hydrocarbons (b) chlorofluorocarbons (c) greenhouse gases (d) ultraviolet radiations

Answer»

The depletion of the 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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