Question
Distinguish between biodegradable and non-biodegradable wastes.
✓
Answer
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S. No.
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Biodegradable wastes
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Non-biodegradable wastes
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$(i)$
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These are wastes which can be broken down to harmless or non-poisonous substances by the action of microorganisms.
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These are wastes which cannot be broken down to harmless or nonpoisonous substances by the action of micro-organisms.
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$(ii)$
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These wastes undergo rotting.
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These wastes do not undergo rotting or take a very long time for rotting.
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$(iii)$
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Example: domestic sewage, newspapers and vegetable matter.
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Example: polythene bags, plastics, glass, aluminium cans, iron nails and $DDT$.
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