Hard Winter

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Across
  1. 5. Snow mixed with rain
  2. 7. Riding downhill on a sled
  3. 9. Lights in polar skies
  4. 10. Path for smoke to escape
Down
  1. 1. Warm hand coverings
  2. 2. Cold, treeless region
  3. 3. Bird that lives in cold regions
  4. 4. House made of snow
  5. 6. Animal that hibernates
  6. 8. Strong air movement