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Author Question: According to the geothermal gradient, there is an increase in temperature with increasing depth. If ... (Read 44 times)

laurencescou

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on: Jul 16, 2018
According to the geothermal gradient, there is an increase in temperature with increasing depth. If that is the case, why isn't the entire interior of the planet molten?
 
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Question 2

Is the force of gravity the same over the Earth's surface? Explain why or why not.
 
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flexer1n1

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: The great internal pressure of the Earth raises the melting point of the minerals.

Answer to Question 2

Answer: The acceleration due to gravity is not the same over the planet. It is less at the equator than at the poles because the planet bulges out farther at the equator. This oblate spheroid shape is the result of rotation.


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