UNIVERSE
THE SUN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the cycle of the tides
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the cycle of the seasons
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the day-and-night cycle
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the phases-of-the-moon cycle
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Detailed explanation-1: -The Earth orbits the sun once every 365 days and rotates about its axis once every 24 hours. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term ‘one day’ is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.
Detailed explanation-2: -The Earth rotates on its axis. As rotation occurs, only one half of the Earth faces the Sun and that has day while the other has night. This causes us to experience day and night. Thus, the rotation of the Earth gives rise to day and night.
Detailed explanation-3: -The axial tilt of the earth’s rotation axis with respect to its orbital axis causes variations in the length of day and night on the earth’s surface from season to season.