How would the flow of heat generated by radioactive decay benefits the theory of continental drifts?

The heat generated by radioactive decay within the Earth's mantle contributes to mantle convection, which is a key driver of plate tectonics. This convection process helps to create and sustain the movement of tectonic plates, leading to the shifting of continents over geological time. As these plates move, they can collide, pull apart, or slide past each other, supporting the theory of continental drift. Thus, the heat from radioactive decay plays a crucial role in the dynamic processes that shape the Earth's surface.