Question

write short note useful and harmful bacteria ​

Answer 1

Explanation:

Use full bacteria : it is used convert milk to curd. This type of bacteria is useful in daily life.

Harmful bacteria :it very harmful to us this causes to us stomach pain etc

Answer 2

Answer:

Bacteria is of two types

* useful bacteria

* harmful bacteria

Explanation:

useful bacteria:

bacteria is useful to us in many ways like the curd which we eat is a good source of protein and calcium and curd contain bacteria in it which is useful to us.

harmful bacteria:

bacteria is also harmful to us as many bacteria are very harmful as they cause diseases. example of disease which is caused by bacteria is chickenpox.

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