Question

which of the following cycles does not involve living organisms?
a. carbon cycle
b. oxygen cycle
c. rock cycle
d. nitrogen cycle

please select the best answer from the choices provided

a
b
c
d

Explanation:

• The carbon cycle involves processes like photosynthesis (by plants) and respiration (by organisms) to cycle carbon.
• The oxygen cycle is closely linked to the carbon cycle, with organisms producing and consuming oxygen.
• The nitrogen cycle has processes like nitrogen fixation by bacteria (living organisms) and assimilation by plants and animals.
• The rock cycle involves processes like weathering, erosion, sedimentation, and metamorphism, which are geological processes and do not directly involve living organisms.

Answer:

C. rock cycle