In winter we see a thick fog like layer which is smog. Smog made up of:
(1) Oxygen and carbon dioxide
(2) water vapour and oxygen
(3) smoke and water
(4) smoke and fog
Answers
Answered by
6
Answer:
4)smoke and fog .
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Answered by
2
Answer:
4 is the answer
Explanation:
4 is the answer
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