Acid rain can be best defined as
(i) surface run-off from agricultural land containing chemicals like fertilizers
(ii) rainwater containing dissolved acids
(iii) the rain of acids formed in the clouds due to lightning

Options

A. (i) and (ii)
B. (i) and (iii)
C. only (ii)
D. Only (i)

Answer

C

Explanation

The fossil fuels like coal and petroleum contain small amounts of nitrogen and sulphur. When these fuels are burnt, nitrogen and sulphur too are burnt and this produces different oxides of nitrogen and sulphur. They dissolve in rainwater to give rise to acid rain.