Plate tectonics

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Across
  1. 4. plates that rub next to each other?
  2. 7. what is in Antarctica and proves continental drift?
  3. 8. what shakes the ground?
  4. 10. what produces rock?
  5. 12. what occurs in the mantle as hot material rises?
  6. 13. plates that move away?
  7. 15. oceanic + continental = what?
Down
  1. 1. what is the supercontinent?
  2. 2. what layer is a hot, softer rock layer that can move and flow?
  3. 3. continental + continental = what?
  4. 5. who discovered continental drift?
  5. 6. that moves under our earth?
  6. 9. what is the movement of large land?
  7. 11. what exsploeds?
  8. 14. what is found in igneous rock and proves continental drift?