What is the main advantage of using biofertilisers in agriculture?

What is the main advantage of using biofertilisers in agriculture?
  1. It reduces environmental pollution
  2. It increases soil fertility
  3. It reduces dependence on chemical fertilisers
  4. All of the above

Solution

Biofertilisers are organisms that enrich the soil's nutrient quality and reduce the dependence on chemical fertilisers, thus reducing environmental pollution.

Asked in: NCERT

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