Inner planets

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Across
  1. 2. 4 closest planets to sun
  2. 6. closest planet
  3. 8. how many moons
  4. 9. known life
Down
  1. 1. known as
  2. 3. what kind of orbits
  3. 4. material of planet
  4. 5. hottest planet
  5. 6. red planet
  6. 7. gasses surrounding a planet