Explain how the continents have shifted over time?

The theory of plate tectonics explains that the Earth's lithosphere is divided into large plates that float on the semi-fluid asthenosphere. These plates move due to the heat-driven convective currents in the mantle. Continental drift is the movement of the continents across the Earth's surface over geologic time. The continents have shifted over time due to the movement of these tectonic plates, leading to the formation of supercontinents like Pangaea, which later broke apart into the continents we see today.