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(a) What is meant by biodegradable waste materials? Give two examples of biodegradable wastes.(b) Which of the following materials are non-biodegradable?Aluminium wire, Tea leaves, Synthetic fibre, Wool
(a) The waste materials that can be broken down to non-poisonous substances in due course of time by the action of micro-organisms like certain bacteria are called biodegradable waste materials.
Example: Paper and wool.
(b) Aluminum wire and Synthetic fiber are non-biodegradable materials.
Additional information:
Biodegradable Wastes: Those waste materials which can be broken down to non-poisonous substances in nature by the action of microorganisms (like bacteria) are called biodegradable wastes.
- They get recycled and therefore do not require dumping sites.
- They do not cause any pollution to the soil.
- Example: Paper, Wood, etc.
Non-Biodegradable Wastes: Those waste materials which cannot be broken down into non-poisonous substances in nature are called non-biodegradable wastes.
- They cannot be recycled easily and therefore are to be dumped which requires a lot of space. This cause wastage of land.
- The harmful chemicals leach out of these wastes when they are dumped in soil. This leads to soil pollution.
- Example: DDT, Plastic, and Polythene bags.
Updated on: 18-Jan-2023
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