In the following groups of materials, which group/groups contain only non-biodegradable materials ?
Channel: Doubtnut
Date: 26/01/2020

In the following groups of materials, which group/groups contain only non-biodegradable materials ? (i) wood, paper, leather (ii) polythene, detergent, PVC (iii) plastic, detergent, grass (iv) plastic, bakelite, DDT