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Question
How does a biodegradable waste differ from a non-biodegradable waste? Give two examples of non-biodegradable wastes which pollute our environment.
Solution
| Biodegradable waste | Non-biodegradable waste |
| Waste materials that can be broken down into non-poisonous substances in due course of time, by the action of natural micro-organisms such as certain bacteria, are called biodegradable wastes. | Waste materials that cannot be broken down into non-poisonous or harmless substances naturally are called non-biodegradable wastes. |
| Examples: Paper and vegetable peels. | Examples: Plastic and iron nails. |
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