Question

How are days and nights caused ​

Answer 1

Explanation:

The Earth orbits the sun once every 365 days and rotates about its axis once every 24 hours. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.

Answer 2

Answer:

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How are days and nights caused?

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The Earth orbits the sun once every 365 days and rotates about its axis once every 24 hours. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time

Due to this tilting of earth , either of the pole come closer to sun than the other. When north pole is closer to sun then the portion of earth above th equator( northern hemisphere) gets more heat from sun than the latter hemisphere (southern hemisphere).

Same happens when south pole tilts to sun.

That hemisphere which is closer to sun, will receive longer duration of sun light.

Hope this helps u..