The Earth revolves around the Sun, and the Moon revolves around the Earth.

Here's a breakdown:

* Earth revolves around the Sun: This means that the Earth orbits the Sun in an elliptical path. This orbit takes approximately 365.25 days to complete, which is why we have a year.

* Moon revolves around the Earth: The Moon orbits the Earth in an elliptical path, taking approximately 27.3 days to complete one revolution. This is why we have a lunar month.

Let me know if you'd like more details on any of these concepts!