Which of the following cycles does not involve living organisms?
a. carbon cycle
b. oxygen cycle
c. rock cycle
d. nitrogen cycle
Answer (2)
The rock cycle does not involve living organisms, unlike the carbon, oxygen, and nitrogen cycles, which are closely related to biological processes. The rock cycle is focused on geological processes rather than biological interactions. Therefore, the correct answer is the rock cycle. ;
The rock cycle does not involve living organisms, making it the correct choice. In contrast, the carbon, oxygen, and nitrogen cycles all depend on biological processes. Therefore, the selected answer is the rock cycle.
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