Geography

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Across
  1. 4. the regions of the Earth where living organisms exist
  2. 8. the envelope of gases surrounding any celestial body
  3. 9. a branch of a river that flows away from the main stream and does not rejoin it
  4. 10. a severe tropical cyclone usually with heavy rains and wind
Down
  1. 1. an open valley in a hilly area
  2. 2. a sunken area forming a separate space
  3. 3. droplets of water vapor suspended in the air near the ground
  4. 5. the height of an object or point in relation to sea level or ground level
  5. 6. an indentation of a shoreline smaller than a gulf
  6. 7. an arm of a sea or ocean partly enclosed by land