Question

1.
Fill in the blanks.
(a) Microorganisms can be seen with the help of a​

Answer 1

Answer:

Answer: (a) Microorganisms can be seen with the help of a microscope. (b) Blue green algae fix nitrogen directly from air to enhance fertility of soil.

Explanation:

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Answer 2

Answer:

with a microscope

Explanation:

cause some are only a few micrometers in length