Rotation  Rotation is the movement of the earth on its axis. Revolution The movement of the earth around the sun in a fixed path or orbit is called Revolution. Orbital Plane The axis of the earth which is an imaginary line, makes an angle of 66½° with its orbital plane. The plane formed by the orbit is known as the orbital plane.  The earth receives light from the sun. Due to the spherical shape of the earth, only half of it gets light from the sun at a time. The portion facing the sun experiences day while the other half away from the sun experiences night. Circle Of Illumination The circle that divides the day from night on the globe…