Microbiology of Soils
Some microorganisms have the ability to increase the nitrogen content of soils, are called as

nitrification
nitrogen fixation
all of these
denitrification

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
Denitrification is

reduction of nitrate (NO3-) to nitrogen gas
both (a) and (b)
changing of atmospheric nitrogen (N2) to nitrogen compounds
reduction of nitrate to organic nitrogen compounds

ANSWER DOWNLOAD EXAMIANS APP