In a biogeochemical cycle, an element is in flux when it is moving from one storage compartment to another.The element carbon shows the least flux (that is, shows the least movement, or stops moving) when it is
A) taken up during photosynthesis.
B) given off during respiration.
C) released during fossil-fuel burning.
D) deposited in ocean sediments.
E) broken down during decomposition.

Question

Quizplus · Accepted Answer

Carbon shows the least flux (movement) when it is deposited in ocean sediments because it remains there for a very long time through a process known as sedimentation. The other options all involve carbon moving between different compartments, either through uptake or release, which increases the flux of the carbon cycle.

In a Biogeochemical Cycle, an Element Is in Flux When