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

Question 71

Multiple Choice

Which one of the following statements about the carbon,phosphorus,and nitrogen cycles is true?


A) The major source of carbon used by plants is the soil.
B) The major source of nitrogen used by plants is the air.
C) Phosphorus has no atmospheric component.
D) Bacteria drive the phosphorus cycle.

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