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:A
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 ____