Question

discuss three important ways in which bacteria are useful to us and two ways in which they are harmful ​

Answer 1

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Digestion is helped in by bacteria E. coli, Nitrogen is converted in by Rhizobium and antibiotics can be made by Streptomyces. Bacteria can cause harmful diseases like pneumonia or meningitis. They can also cause food poisoning by contaminating the food by their presence.

Answer 2

Hey dear ur answer is here.....

Digestion is helped in by bacteria E. coli, Nitrogen is converted in by Rhizobium and antibiotics can be made by Streptomyces. 

Bacteria can cause harmful diseases like pneumonia or meningitis. They can also cause food poisoning by contaminating the food by their presence.

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