After he observed that South America and Africa fit together like pieces of a puzzle, Alfred Wegener developed the theory of __________. A. continental drift B. plate tectonics C. tectonic activity D. the layers of the Earth Please select the best answer from the choices provided

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A

A Changing Planet

After he observed that South America and Africa fit together like pieces of a puzzle, Alfred Wegener developed the theory of __________. A. continental drift B. plate tectonics C. tectonic activity D. the layers of the Earth Please select the best answer from the choices provided

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