Which of the following is not a source of carbon for the carbon cycle?
A)shells of marine organisms
B)oil
C)decomposers
D)fertilizer

Question

Quizplus · Accepted Answer

While fertilizer may contain carbon-based compounds, it is not a natural source of carbon in the carbon cycle. Fertilizer is often created through human intervention and agricultural practices, whereas the other options listed are natural sources of carbon found in the environment.

Which of the Following Is Not a Source of Carbon