Question
Differentiate between biodegradable and non-biodegradable substances with the help of one example each. List two changes in habit that people must adopt to dispose non-biodegradable waste, for saving the environment.
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Biodegradable substances
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Non biodegradable substances
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Biodegradable substances are those which can be broken down by microorganisms and insects etc into substances which are taken up by soil and are not harmful to the environment.
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Non biodegradable substance does not decompose naturally and are harmful to the environment and create pollution.
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Biodegradable substances are made up of natural ingredients.
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Non biodegradable substance are made up of natural ingredients.
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For example garden waste of non greasy food waste which is decomposed by soil organisms, make up the humus and do not persist in the environment for long.
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Example: substances like plastic are not broken down by soil organisms and persist in the environment for long.
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