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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
Earth's atmosphere and lithosphere are composed mainly of the elements oxygen and ________.
A) carbon
B) phosphorus
C) silicon
D) hydrogen
E) nitrogen
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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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