Question

how is smog produced​

Answer 1

smog is produced when sunlight reacts with nitrogen gas..

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Answer 2

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➡️Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere.

➡️Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. ... When sunlight hits these chemicals, they form airborne particles and ground-level ozone—or smog.