Question

How are the carbon, nitrogen, and oxygen cycles similar?

a. They are all biogeochemical cycles.
b.
They all involve an interaction between living and nonliving elements.
C. They are all part of the Earth system.
d.
All of the above.

Answer 1

Answer:The answer is b they all involve an interaction between living and nonliving elements.

Answer 2

D

Step-by-step explanation:

its just D