1.

Acid rain is caused by the emission of which of the following into the atmosphere?

A. oxides of nitrogen and sulfur
B. CO2 तथा कार्बन मोनोआक्साइड
C. ओजोन तथा CO2
D. carbon monoxide and nitrogen
Answer» B. CO2 तथा कार्बन मोनोआक्साइड


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