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Photochemical combination of hydrocarbons and nitrogen oxides emitted by automobiles produces health threatening
Options
(a) acid rains
(b) fly ash
(c) CFC
(d) smog
Correct Answer:
smog
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Conservation and Environmental Issues
(111)
Subject: Biology
(4253)
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