Concerning the Nitrogen Cycle,which of These Is NOT True

Multiple Choice

Concerning the nitrogen cycle,which of these is NOT true?

A) It requires a number of different types of bacteria.
B) Plants can take in and use nitrogen from the air by using their leaves.
C) Ammonium in the soil is converted to nitrite by nitrite-producing bacteria and then nitrite is converted to nitrate by nitrate-producing bacteria.
D) Eventually,organic nitrogen becomes inorganic nitrogen again.
E) Human activities increase the nitrogen fixation rate.