Question

Differentiate between biodegradable and non-biodegradable substances with the help of one example each. List two changes in habit that people must adopt to dispose non-biodegradable waste, for saving the environment.

Answer 1

(a) Biodegradable substance : Can be broken down into simpler substances by nature e.g., Vegetable peels.
(b) Non-biodegradable substances : Cannot be broken down into simpler substances by nature. e.g., Plastics or Glass.
Changes in habit :
(i) Use of separate dustbins for biodegradable and non-biodegradable waste.
(ii) Reusing of things such as polybags.
(iii) Recycle of waste.
(iv) Use of carry bags.