Earthquakes and Volcanoes

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Across
  1. 2. valley
  2. 6. spreading
  3. 7. boundary
  4. 9. core
  5. 10. core
  6. 12. Drift
  7. 13. zone
Down
  1. 1. boundary
  2. 3. ridge
  3. 4. Wegener
  4. 5. currents
  5. 8. of Plate Tectonics
  6. 11. boundary