Question

what do you mean by
are microbes?

Answer 1

Hi friends
here is your answer
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Microbs:
Other name of micro organism is microbes.
Microbes are organisms which are very very small and can't be seen by us in nacked eyes.

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Answer 2

Microbes are a massive population of microorganisms;they are too small to see with the naked eye; these creatures are literally everywhere. 
For example: Bacteria and Virus