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doit_the_clown doit_the_clown
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7 years ago
What appears to be the origin of the light, grooved terrain on the surface of Ganymede?
A)   Impacts by cometary debris
B)   Cracking of the surface caused by shrinkage of the moon as it cooled
C)   Cracking of the icy surface, releasing water that expanded as it froze into ice
D)   The flow of water on the solid surface of the moon at some time in the past, which subsequently shrunk as it froze into this distinctive terrain
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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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doit_the_clown Author
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7 years ago
Helped a lot
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This helped my grade so much Perfect
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