question_answer

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:

(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.