Question

Which of the following statements are correct ?

(I) Benzene hexachloride (BHC) is a non-biodegradable pollutant.
(ii) Anthropogenic air pollutants are natural in origin.
(iii) Carbon monoxide is a primary air pollutant.
(iv) Sulphur dioxide causes brown air effect during traffic congestion in cities.

• A. (i) and (iii)
• B. (i) and (ii)
• C. (ii) and (iii)`
• D. (ii) and (iv)

Answer 1

Answer: (A)

(i) and (iii)

Anthropogenic air pollutants are man-made pollutants like emissions, burning of fossil fuels, mining, etc. Sulpur dioxide is produced in large quantities during the smelting of metallic ores and the burning of petroleum and coal in industries and by motor vehicles. It is cause of acid rain