Differentiate between biodegradable and non-biodegradable substances with the help of one example each.
|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|
Concept: Waste Separation Exercise
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