1.

State the importance of biofertilizer.

Answer»

SOLUTION :(a)Obesity is due to genetic factors, physical INACTIVITY, overeating and endocrine factors.
(b)(i)BIOFERTILIZERS are easy to produce in abundance and are available at LOW X cost to the marginal farmer.
(ii)It increases the soil fertility without causing any damage to the soil. Eg: Rhizobium, AZOSPIRILLUM, Azotobacter


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