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  • Which of the following gaseous air pollutants is not emitted directly by human activities, but is formed in the atmosphere as a result of chemical reactions?<s

Which of the following gaseous air pollutants is not emitted directly by human activities, but is formed in the atmosphere as a result of chemical reactions?

Option: 1

Sulfur dioxide (SO_2)


Option: 2

Carbon monoxide (CO) 


Option: 3

Nitrogen oxide (NO_x)

 


Option: 4

Ozone (O_3)


Answers (1)

best_answer

Ozone is not emitted directly by human activities, but is formed in the atmosphere as a result of chemical reactions between nitrogen oxides and volatile organic compounds in the presence of sunlight. Ozone can have negative impacts on human health, vegetation, and materials.

Posted by

Kuldeep Maurya

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