Question

How many statements are true about biofertilizers?

1. They are nitrogen fixers.
2. They are commercial preparation of live bacteria and fungi.
3. Use of biofertilizers is expensive.
4. There is only one type of biofertilizer.
5. They are classified as inorganic.

विकल्प

• I and II only

• II and III only

• I, II and III only

• IV and V only

Answer 1

I and II only

Explanation:

III. Biofertilizers are cost-effective and eco-friendly.

IV. On the basis of nature and function, biofertilizers are divided into five types.

V Biofertilizers are classified as organic.