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Waste decay



Waste can decay Organic waste
Waste cannot decay

food residue

glass


paper

plastic

wood

tin cans

meat and vegetables





metal objects

Organic waste can decay by the action of microorganisms which are called decomposers.


Advantages of waste decay
Disadvantages of waste decay

It prevents waste from pilling up in the environment

It gives out poisonous gases

Waste is returned to the soil as nutrients which make the soil fertile.

It gives out an unpleasant smell

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