Geography

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Across
  1. 2. Mountain created by liquid rock
  2. 4. Deep narrow valley
  3. 6. Area in a desert with water and plants
  4. 7. Large body of ice slowly moving
  5. 9. Area of land drained by a specific river and its' branches
  6. 11. Flat open area
  7. 14. A natural stream of water
  8. 15. Set of islands
  9. 18. Steep rock wall
Down
  1. 1. Land with steep sides that stretches higher than a hill
  2. 3. Small stream flowing into a larger one
  3. 5. Low-lying land at the mouth of a river with soil built up
  4. 8. Group of rocks and coral
  5. 10. Narrow stretch of water joining two larger bodies of water
  6. 12. A body of water surrounded by land
  7. 13. Land surrounded by water
  8. 16. An elevated area of land
  9. 17. Largest body of water