Take two pots and fill each pot half with soil. Mark them A and B. Put plant waste in pot A and things like polythene bags, empty glass bottles and broken plastic toys in pot B. Put the pots aside. Observe them after $3 - 4$ weeks.

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Solution

Plant waste in pot A has been decomposed. The plant waste has been converted into manure by the action of microbes. The nutrients released in the process could be used by the plants again. So, they are called biodegradable.
In pot B, the polythene bags, empty glasses, bottles and broken toy parts did not undergo any such change. The microbes could not 'act' on them and convert them into manure. So, they are called non-biodegradable.

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Take two pots and fill each pot half with soil. Mark them A and B. Put plant waste in pot A and things like polythene bags, empty glass bottles and broken plastic toys in pot B. Put the pots aside. Observe them after 3−4 weeks.

Take two pots and fill each pot half with soil. Mark them A and B. Put plant waste in pot A and things like polythene bags, empty glass bottles and broken plastic toys in pot B. Put the pots aside. Observe them after $3 - 4$ weeks.