Question

Recent reports of acid rains in industrial cities are due to the effect of atmospheric pollution by

• A. Excessive release of NO${}_2$ and SO${}_2$ by burning of fossil fuels
• B. Excessive release of CO${}_2$ by burning of fuel like wood and characol, cutting of forests and increased animal population
• C. Excessive release of NH${}_3$ by industrial plants and coal gas
• D. Excessive release of CO in atmosphere by incomplete combustion of coke, characoal and other carbonaceous fuels in scarcity of oxygen

Answer 1

The correct option is A Excessive release of NO${}_2$ and SO${}_2$ by burning of fossil fuels

Emission of nitrogen oxides and sulphur dioxide from power stations, factories and cars causes acid rain, when they react with the tiny droplets of water in clouds to form sulphuric and nitric acids. The rain from these clouds then falls as acid, known as acid rain.

So, the correct answer is option A.