Define the follwing terms? a. Rotation. b. Revolution. c. Dusk Dawn

Ans. A. Rotation: - It is the spinning of the earth on its axis, which is completed once in 24 hours.

 

1. Revolution: - It is the movement of the earth around the sun in a fixed path or orbit completed in 365 days & 6 hours.

1. Dusk: - Is that period an evening which has diffused light after the sun set.

1. Dawn: - Is that period of the morning, which has diffused light just before the sunrise.