Question

rotation of sun is a periodic change
give a sutable reason​

Answer 1

Answer:

The angular velocity is constant so day is for 12 hours and night for 12 hours. The changes which occur regularly are considered as a periodic change. ... So when the earth rotates one surface of the earth faces the side of the sun which forms a day to that side and another side there is darkness due to lack of sunlight.

Explanation:

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