Frozen Planet

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Across
  1. 4. White and black whale
  2. 5. North Pole
  3. 7. Europe is a......
  4. 8. Green light at the sky
  5. 9. Mass of ice and snow
  6. 10. Natives in a country
  7. 11. Dogs from Greenland
Down
  1. 1. South pole
  2. 2. white bear
  3. 3. Country of snow and ice
  4. 6. Bird from the Antarctica