Which of these have the fastest apparent motion across the night sky? a) galaxies b) moon c) planets d) stars

B) Moon

Explanation:

The fastest apparent motion of the celestial object in the night sky would be that of Moon. The closer the object, faster its apparent motion would appear. The moon is closest to the Earth, thus it appears bigger as well as faster in its motion. Stars and galaxies are very far, thus they appear to move slowly as compared to moon and planets which are relatively very close to the Earth.

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-lavira : )

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