In a biogeochemical cycle,a pool can remain balanced (that is,not increase or decrease in size)only if
A) rates of flux remain constant.
B) fluxes into the pool equal fluxes out of the pool.
C) there are no fluxes into or out of the pool.
D) fluxes out of the pool remain the same size.
E) fluxes into the pool remain the same size.

Question

Quizplus · Accepted Answer

In order for a pool to remain balanced in a biogeochemical cycle, the input (fluxes into the pool) must be equal to the output (fluxes out of the pool). If the two are not equal, the size of the pool will either increase or decrease. Therefore, choice B, "fluxes into the pool equal fluxes out of the pool," is the correct answer.

In a Biogeochemical Cycle,a Pool Can Remain Balanced (That Is,not