A major characteristic of the phosphorus cycle is that it
A) has been little affected by humans.
B) is not essential for life.
C) has its major pool in the atmosphere.
D) cycles rapidly through sediments and rocks.
E) cycles rapidly through organisms.

Question

Quizplus · Accepted Answer

The phosphorus cycle involves the rapid cycling of phosphorus through organisms. It is an essential element for life and has been greatly affected by human activities such as fertilizer runoff and industrial waste. The major pool of phosphorus is found in rocks and sediments, not the atmosphere.

A Major Characteristic of the Phosphorus Cycle Is That It