Question

Study the following statements regarding acid rain and select the incorrect ones.

(i) Acid rain refers to the rainfall and other forms of precipitation with a pH of less than 5.
(ii) Oxides of sulphur and nitrogen are released from automobile exhausts, industries, power plants, etc.
(iii) These oxides of sulphur and nitrogen, may react with water in the air and form sulphuric acid $\left(H_2{SO}_4\right)$ and nitric acid $\left({HNO}_3\right)$
(iv) Acid rain has harmful effects on animals and human beings but no characteristic impact on plants.

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

Answer 1

The correct option is C (iv) only

Acid rain damages plants by direct effect on foliage and growing point-chlorosis, necrosis, defoliation, dieback. It causes leaching of essential minerals of soil.