Nitrogen

Q.

Explain the role of symbiotic bacteria in the nitrogen cycle.

Q. Nitrogen is a limiting nutrient for both natural and agricultural yield.

1. True
2. False

Q. Plants cannot absorb nitrogen in the form of

1. $N_2$
2. ${{\mathrm{NO}}_2}^{-}$
3. ${{\mathrm{NO}}_3}^{-}$
4. ${{\mathrm{NH}}_4}^{+}$