_Lung cancer & DNA breakage are the major ill effects of excessive ozo – McqOptions

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1.	_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.	CO‚Äö√á√á
B.	SO‚Äö√á√á
C.	Hydrocarbons
D.	CFC (chloro fluoro carbon)
Answer» E.

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