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Author Question: What is the source of heat responsible for the high temperatures in Earth's mantle? What is the ... (Read 66 times)

robinn137

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on: Jul 16, 2018
What is the source of heat responsible for the high temperatures in Earth's mantle? What is the source of heat responsible for the high temperatures in Earth's core?
 
  What will be an ideal response?

Question 2

Explain why the inner region of our solar system lost its lightweight gas molecules during planetary accretion.
 
  What will be an ideal response?


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owenfalvey

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

The crystallization of iron at the inner-core/outer-core boundary releases heat. Radioactive decay of elements within the mantle is responsible for the high temperatures in the core of Earth.

Answer to Question 2

The solar wind blew lightweight gas molecules out of the nebula except where they were already bound to the outer planets.


robinn137

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Reply 2 on: Jul 16, 2018
Gracias!

raenoj

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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