Match List I (Pollutant) with List II (Source) and choose the correct answer from the options given below.

List I

i.Lead

ii.Mercury

iii.Benzene

iv.Cadmium

List II

a.Coal combustion

b.Batteries

c.Paint

d.Petrol

Ai-c, ii-a, iii-d, iv-b ✓ Correct

Bi-c, ii-a, iii-b, iv-d

Ci-d, ii-c, iii-b, iv-a

Di-d, ii-a, iii-c, iv-b

Correct answer: (A) i-c, ii-a, iii-d, iv-b

Explanation

Each pollutant links to its typical source of release.

Lead is associated with old paint.

Mercury is released largely from coal combustion.

Benzene comes from petrol and its combustion.

Cadmium is linked to batteries, giving lead with paint, mercury with coal combustion, benzene with petrol and cadmium with batteries.

Nickel-cadmium batteries are a notable source of cadmium in waste.

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