Discussion
Acid Precipitation is caused by a mix of
Answer: D
Acid rain is caused by sulphur dioxide, carbon dioxide and oxides of nitrogen.
\(\mathrm{SO_2}\) and \(\mathrm{NO_x}\) from burning coal and from vehicle exhaust are oxidised and dissolve to give sulphuric and nitric acids, and \(\mathrm{CO_2}\) gives weak carbonic acid. Rain below about pH 5.6 is counted as acid rain.
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