Digestion-And-Absorption Question 399

Question: Which one of the following mineral elements plays an important role in biological nitrogen fixation? (CBSE 2003; AIEEE 2004; RPMT 2007; DUMET 2009)

Options:

A) Zinc

B) Copper

C) Manganese

D) Molybdenum

Show Answer

Answer:

Correct Answer: D

Solution: