Question

Describe the variations in the length of day and night with suitable diagram
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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 the time of year. Also, daylight hours are affected by the tilt of the Earth's axis and its path around the sun.

Answer 2

Answer:

Variations in the length of day and night time from season to season on the earth's surface is due to the axial tilt of earth's rotation axis with respect to its orbital axis. This causes variations in the intensity of Sun's rays falling at a given place over the span of a year leading to variations in day and night time.