Which of the following statements about material cycling is true?
A) All elemental pools are elemental sinks.
B) All elemental sinks are elemental pools.
C) The flux of an elemental sink is high.
D) Both a and b
E) Both b and c

Question

Quizplus · Accepted Answer

An elemental sink is a component of an ecosystem that retains an element for a long period of time, such as minerals in soil or sediment. An elemental pool, on the other hand, is a component of an ecosystem that stores an element for a shorter period of time, such as the atmosphere. Therefore, all elemental sinks are also elemental pools, but not all elemental pools are elemental sinks. Option A is incorrect because not all elemental pools are sinks, and option C is incorrect because sinks typically have low fluxes since they retain elements for long periods of time.

Which of the Following Statements About Material Cycling Is True