create a crossword puzzle

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Across
  1. 2. a person who studies a
  2. 4. puffy things in the air
  3. 7. the last layer
  4. 8. the first layer
  5. 9. the weather over a long period of time
  6. 10. layer of gas on planets
Down
  1. 1. the study of weather
  2. 3. the fourth layer
  3. 5. the second layer
  4. 6. the third layer