Which one of the following statements about the carbon,phosphorus,and nitrogen cycles is true?
A)Of the three,only the phosphorus cycle has no gaseous component.
B)Bacteria drive all three cycles.
C)The major source of carbon used by plants is the soil.
D)The major source of nitrogen used by plants is the atmosphere.

Question

Quizplus · Accepted Answer

The Answer is A

Which One of the Following Statements About the Carbon,phosphorus,and Nitrogen