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 takes up in the from of inorganic nitriates or nitrites. Sometimes it is taken up as organic compounds i.e., urea which have been prepared by bacteria from atmospheric nitrogen.