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ScienceCLASS 8CBSE

answered 27 Mar 2026

1. Fill in the blanks. (a) Microorganisms can be seen with the help of a __. (b) Blue-green algae fix directly from the air and enhance the fertility of the soil. (c) Alcohol is produced with the help of . (d) Cholera is caused by .

A.VERIFIED ANSWERfact-checked by tutors

Soln:

a) Microscope
b) Nitrogen
c) Yeast
d) Bacteria- Vibrio cholera

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1. Fill in the blanks. (a) Microorganisms can be seen with the h