Question

make riddles of science sub chapter crop production and microorganisms for class 8

please fast answer ​

Answer 1

Explanation:

. 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_______.

Ans. (a) microscope (b) atmospheric nitrogen

(c) yeast (d) bacteria