Question

Give two examples each of biodegradable and non-biodegradable wastes.

Answer 1

Biodegradable substances:

1. Waste materials which can be broken down into simpler, non-toxic substances by micro-organisms are called biodegradable substances.
2. Example: animal waste, waste from vegetables, cattle dung, sewage, agricultural residues, etc

Non-biodegradable substances:

1. Waste materials that cannot be broken down into simpler, non-toxic substances by micro-organisms easily are called non-biodegradable substances
2. Example: plastic, iron, aluminum foil, glass, etc.