Match List I (Toxic metal of MSW) with List II (Source) and choose the correct answer from the options given below.

List I

i.Arsenic

ii.Lead

iii.Mercury

iv.Zinc

List II

a.Paints

b.Rubber products

c.Wood preservatives

d.Fluorescent lamps

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

Bi-c, ii-a, iii-d, iv-b ✓ Correct

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

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

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

Explanation

Arsenic in municipal waste comes largely from wood preservatives.

Lead is contributed mainly by discarded paints.

Mercury is released from spent fluorescent lamps and tubes.

Zinc leaches from rubber products in the waste stream.

Matching gives arsenic-wood preservatives, lead-paints, mercury-fluorescent lamps, zinc-rubber products.

These toxic metals resist decay and accumulate through the food chain.

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