Question

why some material are not decomposed by the action of microorganisms.​

Answer 1

Explanation:

because the individual units join together with the carbon - carbon bond which was not recognisable by the bacteria and this lead to the non degradation of the matter.........

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Answer 2

Explanation:

The main reason of a substance being biodegradable is being organic that can be used up by scavengers of environment. On the other hand some substances are non biodegradable because they are synthetic and cannot be decomposed by the microorganism.