Question

Biofertilizers are helpful because

• A. They are nutrient specific.
• B. It causes very less pollution.
• C. It causes land erosion.
• D. None of the above.

Answer 1

Answer: (B)

It causes very less pollution.

Biofertilizer is a substance that contains living organisms which is used to increase the fertility of the soil. It improves the growth of the plant by increasing the content of the soil and thereby increasing the availability of a variety of nutrients to the host plant. It is preferred over chemical fertilizers because it causes very less pollution. Also, it does not allow pathogens to flourish. Various biofertilizers are Rhizobium, Azotobacter, blue-green algae (BGA).

Thus, the correct answer is option B.