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Our Environment — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceOur Environment2 Marks
Question
Differentiate between biodegradable and non-biodegradable substances. Cite examples.
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Answer

Substances that are broken down into simpler substances by biological processes are said to be biodegradable. Examples, wood, paper.
Substances that cannot be broken down into simpler ones by biological processes are said to be non-biodegradable. Examples, plastic, DDT.
Biodegradable
Non-biodegradable
They are decomposed by microbes.
They cannot be decomposed.
They are environment friendly.
They are not environment friendly.
Examples: fruit peels, jute bags, stale food.
Examples: plastic bags, glass, aluminium cans.

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