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Author Question: The vast flood deposits prove Mars once had much running water. What happened to it? What will be ... (Read 118 times)

Caiter2013

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on: Jul 27, 2018
The vast flood deposits prove Mars once had much running water. What happened to it?
 
  What will be an ideal response?

Question 2

Discuss the mass, temperature, color and size of an M3V star, compared to the Sun.
 
  What will be an ideal response?


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Bigfoot1984

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Reply #1 on: Jul 27, 2018
Answer to Question 1

As Martian volcanism died down, the atmosphere became too thin for greenhouse gases to keep the water liquid. Most froze in the polar caps or as tundra underground, and some was also lost into space, like Venus lost its due to exposure to ultraviolet light.

Answer to Question 2

It is less massive, cooler, redder, and smaller than the Sun.


Caiter2013

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Reply 2 on: Jul 27, 2018
:D TYSM

gcook

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Reply 3 on: Yesterday
Excellent

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