Question

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

Fill in the blanks: 

(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____. 

Answer 2

(a) microscope 

(b) nitrogen 

(c) yeast. 

(d) bacteria.