Question

why does the duration of day and night change in a year​

Answer 1

Answer:

The change between day and night is caused by the rotation of the earth on its axis. The changing lengths of days and nights depends on where you are on earth and time of year. Also daylight hours are affected by the tilt of the earth's axis and it's path around the sun.

Answer 2

Explanation:

If I tell you in simple earth is not only the victim the whole universe is expanding as a effect of this in every aspect of Astro little change has been occurring

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