Landforms crossword

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Across
  1. 3. a large area of thick ice that remains frozen
  2. 6. the process of rock being moved to another place
  3. 9. a large body of water surrounded by land
  4. 10. air in motion
  5. 11. a mountain that opens to a pool of hot rock
  6. 12. a huge body of salt water
  7. 14. a flowing, moving stream of water
  8. 16. water with salt
  9. 17. a natural hollow space under the ground
  10. 19. a landform that rises above the surrounding area
Down
  1. 1. a solid, natural structure made of dirt and rock
  2. 2. the process of rock being dissolved
  3. 4. a large, deep valley cut by a river through rock
  4. 5. a very small body of fresh water
  5. 7. an overflowing of large amounts of water
  6. 8. the sliding down of a mass of earth
  7. 13. water without salt
  8. 15. the shaking rolling and sudden shock on earth's surface
  9. 18. a large area of land that is flat or gently rolling