Answer: Sun
Step-by-step explanation:
All the planets in the solar system revolve around sun. The planets move on a particular path in a circular manner which is known as orbit of the planet.
The plants move around the sun in two ways : revolution and rotation. The planets move on its own axis and in addition to this it moves around the sun.
This cause days and nights on Earth. This rotation and revolution also leads to change in seasons and years.