Match List-I with List-II :

	List-I		List-II
(a)	$$2S{O_2}(g) + {O_2}(g) \to 2S{O_3}(g)$$	(i)	Acid rain
(b)	$$HOCl(g)\buildrel {hv} \over \longrightarrow \mathop O\limits^ \bullet H + \mathop C\limits^ \bullet l$$	(ii)	Smog
(c)	$$CaC{O_3} + {H_2}S{O_4} \to CaS{O_4} + {H_2}O + C{O_2}$$	(iii)	Ozone depletion
(d)	$$N{O_2}(g)\buildrel {hv} \over \longrightarrow NO(g) + O(g)$$	(iv)	Tropospheric pollution

Choose the correct answer from the options given below.

Among the following, the one that is not a green house gas is :

Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?

Which one of the following is not a common component of Photochemical smog?