Environmental Awareness-Ozone Depletion (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 7 - 7 of 7

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Question number: 7

» Environmental Awareness » Ozone Depletion

Appeared in Year: 2009

MCQ▾

Question

Ozone depletion is caused by the increase in the level of – (December)

Choices

Choice (4) Response

a.

Oxygen

b.

Carbon monoxide

c.

Water vapour

d.

Chlorofluoro carbon

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