Answer:
The question refers to the Continental Drift Theory.
Explanation:
Continental drift is a theory proposed in 1912 by the German meteorologist and geophysicist Alfred Wegener explaining the origin of continents by the disintegration of the original Pangea supercontinent.
The original idea that the continents fit together was supported by Wegener by comparing geological and paleontological findings mainly from the coasts of Africa and South America. Today, the theory of continental drift is part of the theory of plate tectonics, which explains not only the motion of continents but also the dynamics of the Earth's mantle.