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An important piece of plate tectonic theory is the continental drift idea. This was developed in the early part of the 20th century, mostly by a single scientist, Alfred Wegener. Wegener’s idea eventually helped to form the theory of plate tectonics, but while Wegener was alive, scientists did not believe that the continents could move.
5: The continents fit together like pieces of a puzzle. This is how they looked 250 million years ago. Be able to explain the continental drift hypothesis. Describe the evidence Wegener used to support his continental drift idea.