APSC CCE 2023 · Question 4 of 163

Which of the following groups contain only non-biodegradable materials? (i) Wood, paper, leather (ii) Plastic, bakelite, DDT (iii) Plastic, thermocol, wood (iv) Thermocol, dried-leaf plates, detergents

Environment

A(i) and (ii) only
B(ii) onlyCorrect
C(ii) and (iii) only
D(iii) and (iv) only

Answer: B. (ii) only

Explanation

Only group (ii) — plastic, bakelite and DDT — consists exclusively of non-biodegradable materials. Group (i) is all biodegradable, (iii) contains wood, and (iv) contains dried-leaf plates, which are biodegradable.

Source: APSC CCE Prelims 2023 GS Paper-I, solved paper via assamtest.com

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