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1. write any 10 examples of biodegradable and non biodegradable substances.

2. write anarticale on plastics (200 words)

if you ask two questions for 10 points you may not get best answers


Biodegradable substances r those which can be easily decomped by nature eg. raw materials , peels of fruits and vegetables , paper, wood, leaves, dead bodies, natural fibres, etc.
nonbiodegradable substances r those which cannot be decomposed by nature. eg.plastic,
metals, synthetic fibres, cosmatics, medicines, chemical substances, etc.
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