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Home Q & A Board Science-Related Homework Help Physics
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doit_the_clown doit_the_clown
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7 years ago
A caldera is
A)   a crater formed by collapse at the summit of a volcano.
B)   a valley formed by the separation of two crustal plates.
C)   a long, sinuous valley carved by the flow of molten rock.
D)   a depression formed by the impact of an asteroid on a planetary surface.
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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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hyponoticahyponotica
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7 years ago
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doit_the_clown Author
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7 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
erimis
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Yesterday
This calls for a celebration Person Raising Both Hands in Celebration
jcarter
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2 hours ago
Good timing, thanks!
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