Major domain of the earth

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Across
  1. 5. means life
  2. 6. largest continent
  3. 7. cover by3ocean
  4. 9. means land
  5. 10. hottest desert
Down
  1. 1. means air
  2. 2. triangle shape
  3. 3. longest river Nile
  4. 4. 78% in earth
  5. 8. means water