cryosphere crossword puzzle

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Across
  1. 3. valley a valley that is in between two mountains in a u shaped
  2. 5. when two glaciers merge into one
  3. 7. they form in front of the glacier when they meet with another glacier
  4. 8. a long ridge of gravel and other sediments typically having a wing cores deposit by melting water
Down
  1. 1. a large sheet of ice
  2. 2. a thick layer of soil that remains frozen through out the years
  3. 4. a low oval mound that's a small hill typically one of a group that consists of compacts bold clay molded by past glacier action
  4. 6. a steep sided mound of sand and gravel deposited.