2013 · Q41
41. Which one among the following group of items contains only biodegradable items?
General KnowledgeBiology
- APaper, grass, glass
- BWood, flower, iron-scrap
- CSewage, plastic, leather
- DCow-dung, paddy-husk, vegetable wastes
Explanation
Only cow-dung, paddy-husk and vegetable wastes are all biodegradable; the official key marks D.