Question

fill in the blanks.
1.Microorganisms can be seen with the help of a ___________
2.Blue green algae fix ___________
directly from air and enhance fertility
of soil.
3. Alcohol is produced with the help of ___________
4. Cholera is caused by __________

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Answer 1

1 Microscope 2 fungus 3 virus

Answer 2

Answer:

1- microscope

2- nitrogen gas

3- mosquito

4-fifty-six