Question

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.

CO₂

b.

SO₂

c.

hydrocarbons

d.

CFC (chloro fluoro carbon)

Answer: (d).CFC (chloro fluoro carbon)

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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

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