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taskmasters

One astronomical unit is equal
to the average distance between the Earth and the Sun. The answer is letter B. However,
the distance between the earth and the sun varies as the earth revolves around
the sun. but recent discoveries have proven the exact distance. It is also
equal to 149, 597, 870, 700 meters and was defined by the International
Astronomical Union. 

AA07
BThe Sun

One Astronomical Unit (AU) is approximately equal to the distance between the Earth and our star. It is 149597871 kilometres.

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