crossword by tri for choice board

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Across
  1. 2. The name of the theorized supercontinent that landmasses were combined together
  2. 4. The person who came up with the theory of plate tectonics
  3. 7. This boundary causes faults, and earthquakes
  4. 8. Two plates moving away from each other
  5. 10. Lines that show the elevation of an object
  6. 12. the process of dropping sediment
  7. 14. This boundary causes mountains, volcanoes
Down
  1. 1. a low area surrounded by mountains, usually a V or U shape
  2. 3. breaking down of rock due to atmostphere
  3. 5. the process of wearing away and transporting via natural proccess
  4. 6. several rivers moving into a large body of water
  5. 9. the theory of how landmasses moved
  6. 11. study of the earths surface features
  7. 13. the top of a mountain