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 ?
Correct answer: A. CO
- A. CO
- B. SO2
- C. NOx
- D. CFC (chloro fluoro carbons)
Explanation
Carbon monoxide is not normally identified as a major direct ozone-depleting pollutant, unlike stratospheric chlorine from CFCs and some nitrogen oxides. Hence CO is the best choice.
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