Question

Whether microorganisms are useful or harmful. Explain how?

Answer 1

some microorganisms are useful while some are harmful. they are used in fermentation.used in food making

they are they cause diseases in human beings

Answer 2

In some ways they are very helpful to us and in some ways they are very harmful to us
Useful:
They are used in yogurt ,they are helpful in decay dead matters.

Harmful :
They make useful things to get decay ,they cause bad smell.