Microbiology of Soils
The transformation of nitrates to gaseous nitrogen is accomplished by microorganisms in a series of biochemical reactions. The process is known as

nitrification
ammonification
nitrogen fixation
denitrification

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
Nitrogen fixation by the microorganisms can be detected by adopting the approach of

All of these
cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen
demonstrating growth in a nitrogen free medium
measuring15N2 by mass spectrometer

ANSWER DOWNLOAD EXAMIANS APP