Final answer:
Plate tectonics is the process by which the continents move across Earth's surface due to the movement of large tectonic plates.
Step-by-step explanation:
The process by which the continents move slowly across Earth's surface is called plate tectonics. Plate tectonics is the theory that the Earth's lithosphere is divided into several large plates that float on the semi-fluid asthenosphere beneath them. These plates are constantly moving due to the convection currents in the Earth's mantle.
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