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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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barry barry
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11 years ago
Unlike the other biogeochemical cycles and their elements, ________ is abundant in Earth's crust, but virtually absent in the atmosphere.
A) oxygen
B) carbon
C) hydrogen
D) nitrogen
E) phosphorus
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saviosavio
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11 years ago
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Biology - The only science where multiplication and division mean the same thing.

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barry Author
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#2
11 years ago
Thanks
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