Match the columns and find the correct option.
I II
(p)
Pollen grains (i) Photochemical smog
(q) PAN (ii) Particulate pollution
(r) $C O_{2}$ (iii) Global warming
(s) Cadmium (iv) Itai-itai disease

p-ii, q-i, r-iii, s-iv

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p-iv, q-ii, r-i, s-iii

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p-i, q-ii, r-iii, s-iv

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p-iii, q-i, r-ii, s-iv

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Solution

The correct option is A p-ii, q-i, r-iii, s-iv
(p) Pollen grains released from flowers are fine particles, whcih on inhalation cause allergy in some individuals.
(q) PAN(Peroxy acyl nitrates) are chemicals that is a component of photochemical smog(which is formed in density populated cities by reaction of ultraviolet light with nitrogen oxides released from automobiles & industries)
(r) Carbon dioxide is one among the green house gases which when formed in excess, will hold the solar radiation close to earth surface. It will increase the temperature of the earth surface, which results in global warming.
(s) Itai Itai is a disease caused by cadmium poisoning, which occurs by the consumption of water bodies from the mining industry in Japan in early $20^{t h}$ century. This distance severely affects bones, joints & kidneys.

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