Question

fill ups
1. microorganisms can be seen with the help of a ..............
2. blue green algae flex .................. directly from air to enhance fertility of soil.
3. alcohol is produced with the help of ..............
4. cholera is caused by ..............​

Answer 1

Answer:

1. microscope
2. nitrogen
3. yeast
4. bacteria

Explanation:

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Answer 2

Answer:

1. microscope

2. nitrogen

3.fermentation

4.vibrio cholera

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