Question

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​

Answer 1

Answer:

I hope it helps microscope answer is within the question

Answer 2

1. electron microscope
2. Nitrogen
3. Yeast
4. Vibrio cholerae bacteria