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My day
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Grzegorz Piwowarski
15 Views • May 21, 2015
Wikipedia Context
A day is the time period of a full rotation of the Earth with respect to the Sun. On average, this is 24 hours. As a day passes at a given location it experiences morning, afternoon, evening, and night. This daily cycle drives circadian rhythms in many organisms, which are vital to many life processes.
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My day
Grzegorz Piwowarski