Question

are all microorganism harmful ? why?​

Answer 1

Answer:

Microscopic creatures—including bacteria, fungi and viruses—can make you ill. But what you may not realize is that trillions of microbes are living in and on your body right now. Most don't harm you at all. In fact, they help you digest food, protect against infection and even maintain your reproductive health.

Answer 2

Explanation:

not all microorganisms are harmful

Some microorganisms are helpful to us