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Microorganisms: Friend and Foe
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04/04/2021 10:18 am
Topic starter
Fill in the blanks:
(i) Microorganisms can be seen with the help of a …………..
(ii) Blue-green algae fix ………… directly from air to enhance fertility of soil.
(iii) Alcohol is produced with the help of ………….
(iv) Cholera is caused by ……………
1 Answer
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04/04/2021 10:19 am
(i) Microscope
(ii) Nitrogen
(iii) Yeast
(iv) Bacteria.