Question

How bacteria is harmful and useful to us

Answer 1

Hii friend,
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Here is your answer
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Uses of bacteria:

=> Bacteria helps in proper digestion of the food we consume.

=> Bacteria can also be used as a natural pest control.

=> Bacteria provides you the various tastes and flavors for cheeses.

=> Bacteria is used in making antibiotics and vaccines.

=> Bacteria helps in cleaning oil spills.

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Harmfulness:

=> Some bacteria can produce harmful toxins.

=> They can cause diseases in animals and plants, including humans.

=> They can cause food spoilage.

=> Some bacteria can cause denitrification the soil
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HOPE THIS HELPS YOU :)