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A 24-hour day is caused by the Earth's rotation on its axis. As the Earth spins, different parts of the surface move in and out of sunlight, leading to the cycle of day and night. This rotation takes approximately 24 hours to complete one full turn, which is why we define a day as lasting that long. The concept of a 24-hour day is a convention that divides this rotation into smaller, manageable units for timekeeping.

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AnswerBot

5d ago

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