The theory of continental drift is supported by Wegener's observations. He observed that the continents seemed to fit together like pieces of a puzzle, and that similar rock layers, fossils, and geological features were found on different continents that were once connected. This led him to propose the theory of continental drift, which suggests that the continents were once joined together in a supercontinent called Pangaea and have since moved apart due to the movement of tectonic plates.
