Q2 of 37 Page 37

Explain fixation of nitrogen.

The process of conversion of atmospheric nitrogen into nitrogenous compounds is called nitrogen fixation.

Nitrogen-fixing bacteria can convert atmospheric nitrogen into nitrogenous compounds. Nitrogen fixation also occurs through lightning.

A type of plants can fix nitrogen gas of air into compounds of nitrogen. Give its name.

Is the decomposition of the bodies of dead plants and animals by microorganisms desirable?

Give one important use of algae.

A microorganism is used in baking industry. Name it.

Questions · 37

2. Microorganisms Friend and Foe

1 2 3 4 1 2 3 4 5 1 2 3 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20