Solar system

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Across
  1. 3. earths shape
  2. 4. ----centauri is the closest star
  3. 8. object that revolves round planet
  4. 9. layer of air around earth
Down
  1. 1. name of a planet
  2. 2. dog planet
  3. 5. distance between earth and Sun- unit
  4. 6. name of a ocean
  5. 7. rocky planet