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Q.

Which of the following group(s) belongs to the biodegradable category?


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a

Paper and wood

b

Dead animals and plants

c

Peels of vegetable and woollen clothes

d

All of the above 

answer is D.

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Detailed Solution

Paper, wood, dead plants and animals, peels of vegetables, and woolen clothes belong to the biodegradable category.
The substances which decompose biologically by certain bacteria are known as biodegradable substances. Decomposers convert rotting and dead animals into minerals. These minerals combine with the soil and are subsequently used by plants. The biodegradable materials include paper, wood, dead animals, and organic substances, which are converted into substances like carbon dioxide, methane, and simple organic molecules.
 
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