What causes day and night on Earth?
The Earth's rotation on its axis causes day and night.
Day is experienced by the side of the Earth facing the sun.
Night is experienced by the side of the Earth facing away from the sun.
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How long does it take for the Earth to complete one rotation?
It takes 24 hours for the Earth to complete one rotation (1 day).
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How long does it take for the Earth to orbit the sun?
It takes 365 days (1 year) for the Earth to orbit the Sun.
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What causes the seasons on Earth?
The tilted axis of rotation and the Earth's orbit around the sun
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