Question 12In 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)(d) (ii) and (iv)

Question 12In the following groups of materials, which group(s) contai

1.	Question 12In 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)(d) (ii) and (iv)
Answer» Question 12 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) (d) (ii) and (iv)