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Question : In the following groups of materials, which group(s) contains only non-biodegradable items? (i) Wood, paper, leather (ii) Polythene, detergent, PVC (iii) Plastic, detergent, grass (iv) Plastic, bakelite, DDT

Answer»

(iii)
(iv)
(i) and (iii)
(II) and (iv)

Solution :Polythene, DETERGENT, PVC, plastic, BAKELITE and DDT are non-biodegradable SUBSTANCES.


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