Photochemical combination of hydrocarbons and nitrogen oxides emitted by automobile

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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