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Question
List two classes into which garbage is classified.
Solution
There are two types of garbage:
-
Biodegradable wastes: Substances that can be decomposed by the action of micro-organisms are called biodegradable substances.
e.g. Fruit and vegetable peels, cotton, jute, dung, paper etc. -
Non-biodegradable Wastes: Substances that cannot be decomposed by the action of micro-organisms are called non-biodegradable wastes.
e.g. Plastic, polythene, pesticides etc.
Most of the non-biodegradable wastes results from human activities.
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