johannahtravis
johannahtravis johannahtravis
  • 25-01-2017
  • Biology
contestada

What have scientists observed in order to learn about earths interior?

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madelynn32
madelynn32 madelynn32
  • 25-01-2017
I haven't learned that but I would tell you if I knew
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SteveUrcle11
SteveUrcle11 SteveUrcle11
  • 26-01-2017
They have observed how radio signals move through the middle of earth to find the density of the metal.
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