In the following groups of materials, which group (s) contains only non-biodegradable items?

Question

(i) Wood, paper, leather
(ii) Polythene, detergent, PVC
(iii) Plastic, detergent, grass
(iv) Plastic, bakelite, DDT
(a) (iii) (b) (iv)
(c) (i) and (iii) (d) (ii) and (iv)

Answer 1

(d) (ii) and (iv)