Question

What do you mean by biodegradable and non-biodegradable substances? Give an example of each.

Answer 1

Biodegradable substances:

1. Waste materials that can be broken down into simpler, non-toxic substances by microorganisms are called biodegradable substances.
2. Examples: animal waste, waste from vegetables, cattle dung, etc.

Non-biodegradable substances:

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