Our atmosphere has 78% nitrogen gas. Nitrogen is one of the essential constituent
of all living organisms as part of proteins, chlorophyll, nucleic acid and vitamins.
Select the correct statement related to nitrogen.
(A) Not useful for plants
(B) Important for growth of plants, and is taken by all plants from the air
(C) Important for growth of plants, but only some plants absorb the nitrogen present in the airdirectly
(D) Important for growth of plants, but no plant can absorb the nitrogen present in the air directly.
Even in the process of nitrogen fixation, the plant does not take the nitrogen directly and bacteria transforms the nitrogen to nitrates, so how is (c) the right answer?
Ans 1: