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Question
Differentiate between biodegradable and non-biodegradable substances with the help of one example each.
Solution
| Biodegradable wastes | Non-biodegradable wastes | ||
| (a) | Waste materials which can be broken down to non-poisonous substances in nature in due course of time by the action of microorganisms such as certain bacteria are called biodegradable wastes. | (a) | Waste materials which cannot be broken down into non-poisonous or harmless substances in nature are called non-biodegradable wastes. |
| (b) | Examples: Cattle dung, wool, paper, compost | (b) | Examples: Plastics, polythene bags, metal articles, glass objects |
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