Glacier crossword

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Across
  1. 3. a valley formed by a river
  2. 6. a valley wich is cut of by a deeper valley
  3. 8. water freezes in a rock
  4. 9. starting point of a glacier
  5. 10. narrow ridge of rock which separates two valleys
  6. 11. the process that breaks things down
Down
  1. 1. a valley formed by a glacier
  2. 2. a lake formed in a corrie
  3. 4. when rocks and stones become frozen to the base or sides of the glacier
  4. 5. melted glacial ice
  5. 7. a river of ice
  6. 12. frozen water