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Biology 17 Online
OpenStudy (anonymous):

The crust, mantle, and core are all part of the      A. biosphere. B. geosphere. C. atmosphere. D. hydrosphere.

OpenStudy (e.mccormick):

Earth Science goes in Geography. Also, those are all parts of soil and rock... so the answer is going to deal with those.

OpenStudy (anonymous):

B. Geosphere

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