CBSE Class 9 Biology Biogeochemical Cycles

Q.

What is the final step of the nitrogen cycle?



Q.

Which of the following microorganisms are responsible for nitrogen fixation?



Q.

Decomposers break down the dead body to release nitrogen as



Q.

In what form is carbon found in the atmosphere?



Q.

Carbon returns to the atmosphere by three ways. Which of the following is not a way?



Biogeochemical Cycles - 2

Cyclic flow of nutrients in four biogeochemical cycles namely, water cycle, nitrogen cycle, carbon cycle, and oxygen cycle.