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OpenStudy (anonymous):
Because of biogeochemical cycling, A. human activity has no effect on elements, chemical compounds, and other forms of matter. B. living organisms are not limited by any one nutrient. C. nutrients are circulated throughout the biosphere. D. many nutrients do not reach toxic concentrations in the biosphere.
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OpenStudy (anonymous):
C is the answer; but I'm not sure that this is a mathematics question...
OpenStudy (anonymous):
no ones helping scciencee
OpenStudy (anonymous):
Oh. Well... Glad I could help.
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