Match the List I (Book/Substance) with List II (Author/Discoverer).

List I

i.Population Bomb

ii.Ozone Layer depleting chemicals

iii.Silent Spring

iv.The Waste Makers

List II

a.Sherwood Rowland & Mario Molina

b.Rachel Carson

c.Paul Ehrlich

d.Vance Packard

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

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

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

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

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