An astronomical unit (A.U.) is _____.
the diameter of the Sun
the distance from the Sun to the edge of the Solar System
the distance from the Sun to the earth
the mass of the earth
An astronomical unit (A.U.) is the distance from the Sun to the earth.
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Asked 2/3/2016 8:51:32 PM
Updated 2/3/2016 9:48:12 PM
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