________ is the time taken by the Earth to return to a given point in its orbit with reference to a fixed star.

________ is the time taken by the Earth to return to a given point in its orbit with reference to a fixed star. Correct Answer Sidereal year

Because, for all intents and purposes, the sky is "fixed", a sidereal day is when the earth rotates 360°. A sidereal day is 23 hours 56 minutes and 4.09 seconds long. A sidereal year is the time it takes for the sun to return to the same position with respect to the stars.
Bissoy MCQ

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