Match List I (Water pollutant type) with List II (Example) and choose the correct answer from the options given below.

List I

i.Pathogen

ii.Inorganic chemical

iii.Organic chemical

iv.Radioactive material

List II

a.Salt

b.Iodine

c.Fungi

d.Pesticide

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

Bi-c, ii-a, iii-d, iv-b ✓ Correct

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

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

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

Explanation

Each pollutant type pairs with the example that matches its chemical nature.

A pathogen is a disease-causing organism, matched by fungi.

An inorganic chemical is matched by salt.

An organic chemical is matched by the carbon-based pesticide.

A radioactive material is matched by iodine, giving pathogen with fungi, inorganic with salt, organic with pesticide and radioactive with iodine.

Radioactive iodine is a well-known contaminant released in nuclear accidents.

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