Question

Write short notes of uafull bacteria and harmfull ​

Answer 1

Answer:

usefull bacteria is help us like

Explanation:

lactobacillus Bacteria is helpful to change milk into curd

and

harmful Bacteria is so much harm it gives us diseases like fever ........

Answer 2

Answer:

(i) Some bacteria are good for you, including the bacteria in your digestive system, or gut. These bacteria help to break down food and keep you healthy. Other good bacteria can produce oxygen are used to create antibiotics.

(ii) Harmful effects of microorganisms: Bacteria: Causes various diseases such as typhoid, diarrhea, and cholera. Fungi: Causes a large number of diseases in plants and in animals such as rust diseases in plants, fruit rot in apple, red rot in sugar cane and ring worm disease in human beings.

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