Answer:
The theory of plate tectonics
Step-by-step explanation:
The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations is called the theory of plate tectonics. This theory explains the movements and interactions of the Earth's lithosphere, which is the outermost solid layer of the Earth that includes the crust and the uppermost part of the mantle. It is supported by a wealth of scientific evidence, including the observation of similar rock formations and fossil records on different continents, as well as the existence of earthquakes and volcanoes along the boundaries of the Earth's tectonic plates.