1. 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 (a) (iii) (b) (iv) (c) (i) and (iii) (ii) and (iv)
ScienceClass 10CBSEAnswered 27 Mar 2026
Answer
- Soln:
Answer is (d) (ii) and (iv)
Explanation:
Group i) has wood and leather which are biodegradable. Group iii) has grass which is biodegradable hence the answer is d) (ii) and (iv)