Question

two useful two harmful effects of micro organisms

Answer 1

Answer:

useful effects

1. microbes play defence.

2. microbes boost the immune system .

harmful effects

1.microbes cause alot of diseases to human beings .

2.diseases in humans like common cold chicken pox typhoid and so on is caused by microbes .

Explanation:

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Answer 2

$\bold{\underline{Micro organisms are useful, because}}}$

➜they help is making the food tasty

➜ they are useful as bio pesticides to kill the pests

➜several bacteria helps in the process of sewage treatment

➜they are used in the manufacture of antibiotics

➜they decompose they organic matter and make soil fertile

$\bold{\underline{ micro organisms are harmful,because}}}$

➜ they cause dreadful disease

➜they spoil the feel causing food poisoning

➜they block water pipes