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Question : 37 of 100
Marks:
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Solution:
- Micro-organisms act upon the dead plants to produce humus.
- The micro-organisms which convert the dead plants and animals to humus are known as decomposers like bacteria and fungi.
- For the healthy soil, humus contains many useful minerals and nutrients.
- Dead organic matter in the form of decaying plants and sometimes dead animals on the ground disappear after some time. This is because the
- microorganisms decompose dead organic waste of plants and animals converting them into simple substances.
- These substances are again used by other plants and animals.
- Thus, microorganisms can be used to degrade the harmful and smelly substances and thereby clean up the environment.
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