Environment And Road Safety Education And Violence Against Women And Children And Drug Abuse 2019 Exam With Answers

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25.

Which is pollutant in troposphere and protectant in stratosphere ?

A: CO2

B: Ozone

C: CFC

D: PAN

The answer is: B

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Explanation

Ozone (O3) is a protective layer in the stratosphere that shields the Earth's surface from harmful ultraviolet (UV) radiation. It acts as a protectant by absorbing most of the Sun's UV radiation and preventing it from reaching the troposphere, where it can cause various health and environmental issues.