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Biology 8 Online
OpenStudy (anonymous):

Holes drilled several kilometers into Earth’s crust provide direct evidence about Earth’s interior in the form of a. seismic waves. b. rock samples. c. liquid iron. d. volcanic eruption.

OpenStudy (anonymous):

rock samples?? @HisOnlyForever

OpenStudy (anonymous):

Correct .

OpenStudy (anonymous):

Yeah, you're right :)

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