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18/10/2021 9:10 pm
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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
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18/10/2021 9:12 pm
(a) The waste materials which can be broken down to non- poisonous substances in nature 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 fibre.