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



1. Fill in the blanks:


(a) Microorganisms can be seen with the help of a ________.


(b) Blue green algae fix __________ directly from air to enhance fertility of soil.


(c) Alcohol is produced with the help of __________.


(d) Cholera is caused by __________.


Grade:9

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
8 years ago

(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.

(c) Alcohol is produced with the help of _ yeast _.

(d) Cholera is caused by _ bacteria _.

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