Question

1 write an article on the topic pandemic of covid 19 in 200 to 250 words.
2 write a story on the theme Prevention is better than cure.
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Answer 1

Explanation:

Microorganisms are very useful to us. ... (vii) Microorganisms are used to prepare vaccines for various diseases. (viii) They are useful for agriculture sector, as they enhance the fertility of soil by fixing nitrogen. (ix) They work as natural cleaners, as they decompose the dead bodies of plants and animals.