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doit_the_clown doit_the_clown
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7 years ago
How much of the Moon's surface is illuminated by the Sun at quarter-moon phase?
A)   About one-quarter.
B)   About one half
C)   Only about one-tenth of the total surface
D)   About three-quarters.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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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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hyponoticahyponotica
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7 years ago
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