In the following groups of materials, which group(s) contains only non-biodegradable items ?
A
Wood, paper, leather
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B
Polythene, detergent, PVC
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C
Plastic, detergent, grass
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D
Plastic, bakelite, DDT
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Solution
The correct options are A Polythene, detergent, PVC D Plastic, bakelite, DDT Polythene, detergents, PVC ,plastic, bakelite and DDT are non-biodegradable items while wood, paper, leather and grass are biodegradable.