Question

9. Enlist the useful and harmful bacteria.​

Answer 1

Explanation:

E coil, Rhizobium and Lactobacillus these are useful bacteria.

Listeriosis, Salmonella and Clostridium these are harmful bacteria.

Answer 2

Uses

1. it help to make the curd from milk.

2.the useful bacteria also kills harmful bacteria.

harmful

1.it spoils our food.

2.it spread diseases from one person to another.

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