Days result from... 8.E.4B.4
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Earth's revolution
Earth's rotation
The measurement of days results from two main factors: Earth's revolution around the Sun and Earth's rotation on its axis.
Earth's revolution around the Sun takes approximately 365.25 days to complete, resulting in the passing of one year. This revolution creates the changing seasons and the cycle of the four seasons.
Earth's rotation on its axis takes approximately 24 hours to complete, resulting in the passing of one day. As Earth rotates, different areas of the planet face towards or away from the Sun, creating the cycle of day and night.
These two cycles, Earth's revolution and rotation, work together to determine the length of a day.