Underwater Terms Crossword Puzzle

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Across
  1. 3. this catastrophe was followed by a tsunami that hit Japan in 2011
  2. 4. when plates move apart
  3. 5. theory explaining the structure of the earth's crust
  4. 7. the basis of the 3 different plate movementss
  5. 9. the gradual movement of the continents across the earth over time
  6. 12. an underwater mountain range found in the middle of the Atlantic ocean
  7. 14. the process of one plate being sucked under another
Down
  1. 1. when new areas are created due to divergent boundaries
  2. 2. this natural disaster occured and destroyed the Phillipines in 2004.
  3. 6. when hot air is pushed up and then turned into cold air and brought back down and turned back into hot air
  4. 8. when plates come together
  5. 10. the two sublayers of the earths crust that move and float across the earth
  6. 11. when plates slide across one another
  7. 13. the Mariana is the deepest ________ in the world