Plant nutrient critical for nitrogen fixation in legumes is

A. Cl

B. P₂O₅

C. K₂O

D. Mo

Answer: Option D

Solution(By Examveda Team)

Plant nutrient critical for nitrogen fixation in legumes is Molybdenum.
In legumes such as beans, peas, etc. molybdenum helps in the fixation of atmospheric nitrogen by the root nodules bacteria. The plant needs it to break down any nitrates taken up from the soil.