Q.

Acid rain is caused due to pollution of atmosphere by –

A. oxides of carbon and nitrogen
B. oxides of nitrogen and sulphur
C. oxides of nitrogen and phosphorus
D. None of these
Answer» B. oxides of nitrogen and sulphur
Explanation: Acid rain is caused by emissions of Sulpfur Dioxide (SO2) and Nitrogen Oxide (NOx), which react with the water molecules in the atmosphere to produce acids.
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