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

asked Nov 10, 2018 68.7k views

1 vote

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5 votes

They have observed how radio signals move through the middle of earth to find the density of the metal.

Linimin answered Nov 11, 2018

6.3k points

3 votes

I haven't learned that but I would tell you if I knew

Goppinath answered Nov 16, 2018

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