Choose the forms in which most plants absorb nitrogen
(i) Proteins ,(ii) Nitrates and Nitrites
(iii) Urea
(iv) Atmospheric nitrogen

Options

A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)

Answer

B

Explanation

Nitrogen is an essential element used in the synthesis of proteins and other compounds. This is taken up in the form of inorganic nitrates or nitrites. Or it is taken up as organic compounds, that is, urea which have been prepared by bacteria from atmospheric nitrogen.