What supplies the energy for tectonic plates to interact on earth's surface?

The energy that drives tectonic plate interactions primarily comes from the heat generated within the Earth's interior. This heat is produced by the decay of radioactive isotopes and residual heat from the planet's formation. Additionally, convection currents in the mantle facilitate the movement of tectonic plates, leading to interactions such as collisions, separations, and sliding past each other. These dynamic processes are responsible for various geological phenomena, including earthquakes and volcanic activity.