What are 2 reasons we know the earth has a liquid outer core

[From: ] [author: ] [Date: 11-05-18] [Hit: ]

Shear waves cannot travel through the core.This means there is enough melt in the outer core to absorb earthquake shear waves such as the S-wave.The fact that shear waves are not observed on the other side of the core from the earthquake focus implies liquid.2.The Earths magnetic field is a manifestation of the motion of the liquid outer core.-i.......

what are 2 reasons we know the earth has a liquid outer core?

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1. Shear waves cannot travel through the core. This means there is enough melt in the outer core to absorb earthquake shear waves such as the S-wave. The fact that shear waves are not observed on the other side of the core from the earthquake focus implies liquid.

2. The Earth's magnetic field is a manifestation of the motion of the liquid outer core.

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i.agree ron

1

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