Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?
A. CO
B. SO2
C. NOx
D. CFC (chloro fluoro carbons)
Answer: Option A
This Question Belongs to Chemical Engineering >> Environmental Engineering In CE
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