Question

Match the column I with column II and mark the appropriate choice.

	Column I		Column II
(A)	Biodegradable pollutants	(i)	DDT
(B)	Non-biodegradable pollutants	(ii)	$S{O}_2$
(C)	Primary pollutants	(iii)	PAN
(D)	Secondary pollutants	(iv)	Sewage

• A. (A) $\to$ (iii), (B) $\to$ (iv), (C) $\to$ (ii), (D) $\to$ (i)
• B. (A) $\to$ (ii), (B) $\to$ (iii), (C) $\to$ (iv), (D) $\to$ (i)
• C. (A) $\to$ (i), (B) $\to$ (ii), (C) $\to$ (iii), (D) $\to$ (iv)
• D. (A) $\to$ (iv), (B) $\to$ (i), (C) $\to$ (ii), (D) $\to$ (iii)

Answer 1

The correct option is D (A) $\to$ (iv), (B) $\to$ (i), (C) $\to$ (ii), (D) $\to$ (iii)

Sewage is a biodegradable pollutant which can be degraded. DDT is a type of non biodegradable pollutant. $S{0}_2$ is a primary pollutant, affecting the environment. PAN is considered as a secondary pollutants among all the pollutants.