Chlorofluorocarbons may be harming the ozone layer by
a. adding more ozone molecules
c. destroying ozone molecules
b. blocking ultraviolet radiation
d. adding carbon dioxide molecules

The correct answer is letter c. destroying ozone molecules. Chlorofluorocarbons may be harming the ozone layer by destroying the ozone molecules. CFC's compounds which are released and reach the atmosphere and there in the presence of the high energy ultraviolet radiations.

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