continental drift

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  1. 1. Canadian Scientist who developed Theory of Plate Tectonics
  2. 5. the man who investigated continental drift after finding fossils on opposite sides of oceans.
  3. 6. the boundary where the tectonic plates are sliding past each other.
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  1. 2. tectonics The theory that pieces of Earth's outer crust are in constant motion.
  2. 3. A supercontinent containing all of Earth's land that existed about 225 million years ago.
  3. 4. The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations.