Geography, asked by chandnasidhant, 1 year ago

What causes smog over cities

Answers

Answered by saindulakavath
18
smoke and fog combinely called as smog .

smoke is somewhat unhelthy to us and fog is not too much.

this is formed by mixing both (smoke and fog ) with the help of gases released by industries.

smog is injurious to health.
Answered by vidhinagbhire
1

Answer:

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.

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