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Title: The average speed of motion of the plates on the Earth's surface isA)very small, less than a ... Post by: symbo on Mar 17, 2017 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. Title: Re: The average speed of motion of the plates on the Earth's surface isA)very small, less than a ... Post by: hyponotica on Mar 17, 2017 Content hidden
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