Question

1. What is rotation ?
2. What is revoludion​

Answer 1

Answer:

1)movement in circles around a central point.

2)action taken by a large group of people to try to change the government of a country, especially by violent action

Explanation

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Answer 2

Answer:

1) Rotation means the rotating of earth around the sun which takes 365 days to complete

2) Revolution is rotation of earth by itself which is the cause of day and night.