Question

microorganisms are
1. all are useful
2. some are useful and some are harmful
3. all are harmful​

Answer 1

2. some are useful some are harmful

Answer 2

Answer:

(2) some are useful and some are harmful.

Explanation:

• Useful Microorganisms:-

Bacteria,Fungi, Algae.

• Useless Microorganisms:-

Protozoa, Virus.

Hope this answer helps you.

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