Nathan's crossword

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Across
  1. 2. any ancient organism
  2. 3. forces that construct
  3. 5. contains all living organisms
  4. 6. process were the ocean floor sinks into a deep ocean trench
  5. 9. a landmass from 300 million years ago
  6. 10. a group of parts work together as a whole
  7. 14. plates slip past each other
  8. 15. contains all of earth's water
  9. 18. the theory of continental movement
  10. 19. formed mountains in water
Down
  1. 1. layers of rock
  2. 3. plates come together
  3. 4. plate move apart
  4. 7. where subduction happens
  5. 8. forces that deconstruct
  6. 11. begins at mid ocean ridge
  7. 12. layers of air
  8. 13. under the lithosphere
  9. 16. break in earth's crust
  10. 17. the ability to do work