Forces that Change the Earth!

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Across
  1. 3. Reversal
  2. 5. Boundaries
  3. 6. Spot
  4. 9. Drift
  5. 10. of Plate Tectonics
  6. 12. Boundaries
Down
  1. 1. Valley
  2. 2. Boundaries
  3. 3. Ridge
  4. 4. Plates
  5. 7. Current
  6. 8. Core
  7. 11. Core