earthquakes and plate tectonics

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Across
  1. 2. created by oceanic plates colliding.
  2. 4. kind of plates that are made of basalt and are dense.
  3. 5. a theory that all continents were once together creating a supercontinent.
Down
  1. 1. kind of plates that are made of granite and lighter.
  2. 3. last name of the man who suggested that continents were connected.