Tectonic plates

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Across
  1. 2. A mountain formed at subduction zones
  2. 5. Of fire, a region where volcanoes and earthquakes are active
  3. 7. The rigid, outermost shell on Earth
  4. 9. The soft, flexible upper layer of the mantle, on which the tectonic plates move
  5. 11. Transfer of heat by movement of a fluid
  6. 14. What landform does convergent boundary make?
  7. 15. Device used to measure earthquakes
  8. 17. The last layer in earth
  9. 19. The fossils that helped prove tectonic
Down
  1. 1. Another term for supercontinent
  2. 3. Where two plated are moving away from each other
  3. 4. Where two more plates move toward each other
  4. 6. The layer under the crust
  5. 8. A big wave in the ocean, usually caused by earthquakes
  6. 10. Last name of the person who discovered tectonic plates
  7. 12. Remains of the animal preserved in rocks
  8. 13. Movement of the ground due to shifting of the Earth's crust
  9. 16. the opposite of inner
  10. 18. The planet we live on