Natural diversity of North America

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Across
  1. 3. referring to sth. happening over a year or every year
  2. 5. the sum of a set of numbers devided by the amount of numbers (e.g. ... temperature)
  3. 8. A climate that is usually found far away from big bodies of water is ...
  4. 9. The scale used to describe tornados: Enhanced ... Scale.
  5. 11. The biggest threat of hurricanes are posed by storm ...
  6. 13. The entirety of the mountain ranges on the west coast of the Americas: American ...
  7. 14. The area in the US where most tornados occur: Tornado ...
  8. 16. any form of water in the air (e.g. rain, snow, fog)
  9. 17. the height/elevation of a place
Down
  1. 1. A climate that is influcenced by an ocean or body of water is ...
  2. 2. A storm that forms over land as a result of warm humid air and cold dry air meeting.
  3. 3. The mountain range on the west coast of the USA: ... Mountains
  4. 4. the location of a place concerning how north or south it is on the earth
  5. 6. The part of a hurricane that is in the center
  6. 7. A large storm that usually forms between August and October
  7. 10. If something is very close to something else, it is in close ...
  8. 12. a type of landscape that is flat and usually used for agriculture
  9. 15. a type of landscape between mountains