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Why are the carbon cycle, the phosphorous cycle, the water cycle, and the nitrogen cycle all considered to be biogeochemical cycles?

a.Because all these cycles include the organisms inhabiting water, land, and air.
b.Because all these cycles include living organisms, the biosphere, and the chemical factors in them.
c.Because all these cycles include nonliving organisms, the atmosphere, and the physical factors in them.
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budwilkins
b. Because all these cycles include living organisms, the biosphere, and the chemical factors in them.

The term biogeochemical is broken down to mean: "bio"- living organisms, "geo"- the Earth or the area of the Earth inhabited by organisms (biosphere), and "chemical"- the actual elemental/molecular substances involved, such as Carbon (C), Phosphorus (P), water (H2O), and Nitrogen (N).
juggalogirl666
i think the answer is B.

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