Imreallyyyboreeeed
Imreallyyyboreeeed Imreallyyyboreeeed
  • 28-11-2018
  • Biology
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How do geologists know that earths core is made up of two parts ,please answer as soon as possible that would be great :)

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snoopy81
snoopy81 snoopy81
  • 28-11-2018
They drill holes and bring up samples of rock and study how seismic wave move through the earth.
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