Question

microganism what by acting upon the dead plants.

Answer 1

Answer:

Various microorganisms like algae, amoeba, etc break down various dead plants and animals , and produce many things including humus. It is a way of nature to break down substances so that they dont pollute the land. The humus or other substances which they produce can be used later for various things.

Answer 2

Answer:

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Explanation:

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.