Approximately how long does one full rotation of the Earth on its axis take, defining our standard day?
Answer
24 hours
The Earth's rotation, or spin on its axis, takes approximately 24 hours to complete one full turn, which establishes the concept of a standard day.

#Videos
Movements of the Earth - Earth's Revolution & Rotation - YouTube
Earth's Rotation & Revolution: Crash Course Kids 8.1 - YouTube
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