The Universe and the Solar system

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Across
  1. 1. surface of the moon has large bowl- shaped depressions
  2. 4. It causes day and night
  3. 6. dwarf planet
  4. 7. Earth is surrounded by a layer of air.
  5. 8. the farthest planet
Down
  1. 2. It causes season
  2. 3. The blue planet
  3. 5. The natural satellite of Earth