Question

I NEED GELP ASAP!!!!
Select the correct answer.
Which biogeochemical cycle includes the exoskeleton and shells of marine organisms as a reservoir?
OA.
carbon
B.
nitrogen
C.
sulfur
D.
oxygen

Answer 1

D. Oxygen
It refers to the pathway by which a chemical element is moved through both the abiotic and biotic compartment of an ecosystem.