List of top Environmental Studies Questions on Ozone Depletion

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R) :
Assertion (A): Ozone in troposhere is referred to as bad ozone.
Reasons (R): Fifty percent of ozone is troposphere is emitted directly from fossil fuel combustion and rest comes from stratosphere.
In the light of the above Statements, choose the correct answer from the options given below :

Which of the following does not cause ozone depletion?

One of the roles of ozone layer is to protect earth from

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Thinning of ozone layer is more prominant over Antartica as compared to Arctic.
Reason R: Stratospheric temperature over arctic does not fall as low and for as long as it happens over Antartica and Polar stratospheric clouds form less frequently over Arctic then over Antartica.
In the light of the above statements, choose the most appropriate answer from the options given below :