Subject :NSO Class : Class 9
The given cycle represents circulation of nitrogen in the environment. Identify X, Y and Z in the cycle and select the correct option.
A X - Denitrification, Y - Ammonification, Z - Nitrogen fixation
B X - Nitrate, Y - Denitrification, Z - Ammonification
C X - Nitrate, Y - Nitrogen fixation, Z - Ammonification
D X - Nitrification, Y - Ammonification, Z - Denitrification
Ans 1:
Class : Class 5
Hi all,
The answer is B.
As first, nitrate convert into nitrite i.e. X.
Then by denitrifying bacteria, nitrite gets converted into atmospheric nitrogen i.e. Y.
After decomposition of dead plants and animals, complex nitrogen gets converted into ammonia by ammonification i.e. Z.
Ans 2:
Class : Class 9
A is correct and.