That's "rotation".
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A complete spin of the earth on it's own axis is the rotation. It takes approx. 24 hour for earth to take one complete rotation.
The rotation of the planet on its axis of spin. The spin is responsible for the day and the night.
It takes Mercury much longer than planet Earth to make a complete spin on its axis. Mercury rotates once every 1407 hours or 58 days.
If by revolution you mean the spin on it's own axis this is more or less a perfect circle. If you are referring to it's orbit around the sun, this is elliptical, not a perfect circle.
no the earth spins on it's axis while rotating around the sun