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What is the major component of photochemical smog?
Option: 1
Carbon monoxide
Option: 2
Nitrogen dioxide
Option: 3
Ozone
Option: 4
Sulphur dioxide
Answers (1)
Ozone is the major component of photochemical smog, which is formed through the reaction of nitrogen oxides
and volatile organic compounds (VOCs) in the presence of sunlight.
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