Puzzle Time

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Across
  1. 4. places near it receive the direct rays of the sun
  2. 6. zone that extends within the tropics and is very hot
  3. 8. layer below the crust
  4. 9. enormous farms
  5. 12. another name for cowboys
Down
  1. 1. frozen continent
  2. 2. innermost layer of the Earth
  3. 3. Cold desert
  4. 5. coldest zone
  5. 7. forest where all trees do not shed their leaves at the same time
  6. 10. hot desert
  7. 11. Temperate desert