Question
Asked Dec 5, 2019
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  1. Why doesn't Mars have active volcanoes today?
 

A) 

all of the lava already escaped

 

B) 

the planet lost its internal heat to cold space

 

C) 

the volcanoes are just dormant and will erupt again

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Expert Answer

Step 1

Outer crust of Mars is too thick to allow molten rock to reach the surface from deep below.

Step 2

And the heat stored inside the planet has been lost when it formed...

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