Nitrosomonas convert ammonia into ………….
a) nitrites
b) sodium
c) sulphur
d) magnesium
Nitrobacter convert nitrites into……………….
a) sulphur
b) mangenese
c) nitrates
d) nitrogen
The conversion of nitrate and nitrite into molecular nitrogen
a) nitrification
b) dentrification
c) ammonification
d) none of these
Nitrogen cycle can be broken down into……… types of reaction
a) 3
b) 2
c) 4
d) 6
The earth atmosphere almost…….nitrogen
a) 55%
b) 80%
c) 40%
d) 30%
Microorganisms break down the
proteins and release………….
a) oxygen
b) potassium
c) ammonium ion
d) none of these
