melting ice caps

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Across
  1. 5. something that happens to ice when its heated
  2. 6. gases that get stuck and pollute the atmosphere
  3. 7. where you can find many ice caps and cold dwelling animals there
  4. 8. frozen water
  5. 10. the thing that covers the earth and keeps in oxygen
Down
  1. 1. animals that are being affected by melting ice caps
  2. 2. birds that live in the arctic
  3. 3. clusters of ice in the arctic
  4. 4. when gasses get stuck in the atmosphere
  5. 9. an common harmful gas