Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of________________? | MCQ Hive

Chemical Engineering Chemical Environmental Engineering

Q Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of________________?

A A. Co2
B B. So2
C C. Hydrocarbons
D D. Cfc (chloro fluoro carbon)

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