Phosphorus is an essential nutrient for plants and animals. Phosphorus normally occurs in nature as part of a phosphate ion (PO4)3. As you can see from the diagram of the phosphorus cycle, unlike many other biogeochemical cycles, the _____________ does/do not play a significant role in the movement of phosphorus.
A) oceans
B) atmosphere
C) groundwater
D) food chains

Respuesta :

It's B. the atmosphere
the answer is b i just took the test 
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