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symbo symbo
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7 years ago
The average speed of motion of the plates on the Earth's surface is
A)   very small, less than a millimeter per century.
B)   about 10 meters per year.
C)   a few centimeters per year.
D)   a few centimeters per century.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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7 years ago
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symbo Author
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7 years ago
This calls for a celebration Person Raising Both Hands in Celebration
apelton
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Yesterday
Good timing, thanks!
jasonbourne
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2 hours ago
Thank you, thank you, thank you!
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