Geography

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Across
  1. 5. the envelope of gases surrounding any celestial body
  2. 7. an imaginary line around the Earth forming a great circle
  3. 8. one of the large landmasses of the earth
  4. 9. a long depression in the surface of the land
Down
  1. 1. a large natural stream of freshwater (larger than a creek)
  2. 2. a slowly moving mass of ice
  3. 3. the regions of the Earth where living organisms
  4. 4. a large body of water that is part of the hydrosphere
  5. 6. the territory occupied by a nation
  6. 8. the shore of a sea or ocean exist