Question

Marks: +1
Ques. 95 (SMCQ)
Which of the following biogeochemical cycle is limited to only two spheres out of the three regions
of biosphere?
A
Oxygen cycle
B
Phosphorus cycle
С
sulphur cycle
None of these
D​

Answer 1

Answer:

Answer d

Explanation:

Because Nitrogen cycle is not in these options