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Q.

Ozone layer is a protective blanket in the atmosphere that protects us from the harmful high energy UV radiations coming from the sun. But it has been observed that some harmful air pollutants like chlorofluorocarbons are causing hole in this protective layer. What does this ‘ozone hole’ exactly mean?
 

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a

A large sized hole in the ozone layer

b

Small holes scattered in the ozone layer

c

Thinning of the ozone layer

d

Thickening of the layer

answer is B.

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