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doit_the_clown doit_the_clown
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7 years ago
In what fundamental way does Mercury differ from the Moon?

(a)   Mercury has a much larger iron core than the Moon.
(b)   Mercury has much less cratering than the Moon.
(c)   Mercury rotates about its axis much more rapidly than the Moon.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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papachulopapachulo
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7 years ago
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