Which of the following is a non-biodegradable substance?
Which of the following are biodegradable and which non-biodegradable? Glass bottle, Paper, Ballpoint pen refill, Hay, DDT, Wheat, Cake, Wood, Polythene bag, Jute bag, Cotton cloth, Grass, Vegetable peels
Classify the following as biodegradable and non-biodegradable materials :
Woolen clothes, Polythene bags, Paper, Aluminium cans, Toothbrush, Peels of vegetables and fruits, Cotton cloth, Jute bag, Electric switch, Frying panhandle