How do scientists know the mantle is hot molten rock

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asked Sep 21, 2017 15.0k views

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DirkMausF · Answer 1 · 2017-09-28T09:34:56+0000

Scientists know that (at least part of) the Earth's mantle is made up of solid rock because p-waves can be detected going through it. S-waves can only go through solids and are not able to pass through the parts of the mantle that are "molten".

How do scientists know the mantle is hot molten rock

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