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How is the phosphorus cycle different from the oxygen, nitrogen, and carbon cycles? a. It occurs at the fastest rate. b. It is not essential to life. c. It does not occur naturally. d. It does not involve the atmosphere.

Cynthia Baker

in Geography

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1 answer

Daniel King on January 22, 2019

The answer is D. The only cycle involves the lithosphere, the hydrosphere, and the biosphere, with no role in the atmosphere. The reason that the atmosphere is not involved in that at the natural temperature and pressure of the environment, phosphorus and its compounds are generally in solid form or ion (usually of phosphate ion). It is also very slow, nutrient cycling, with one of the main sources of nutrients to be determined by the tectonic activity that upwells nutrients from the depths of earth's core through volcanic activity.

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