Question

1. Why does a day have only hventy-four hours!​

Answer 1

Answer:

Our 24-hour day comes from the ancient Egyptians who divided day-time into 10 hours they measured with devices such as shadow clocks, and added a twilight hour at the beginning and another one at the end of the day-time, says Lomb.  Tables were produced to help people to determine time at night by observing the decans.

Explanation:

Answer 2

Answer:

because of the calculation of earth's rotation time

Explanation:

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