U.S. Geography

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Across
  1. 4. What State had the largest earthquake in 1811?
  2. 7. Why is Ohio's northern border crooked?
  3. 8. What is it called when politicians shape voting districts?
  4. 10. Why did America develop time zones?
  5. 11. What caused the formation of the Great Lakes, Niagra Falls, and Mississippi River?
  6. 12. What fish is taking over the Illinois River?
  7. 13. Where does the water for Las Vegas come from?
Down
  1. 1. what was formed by a meteor?
  2. 2. Which state has the most Representatives?
  3. 3. What state was Tennessee formed from?
  4. 5. Who owns 80% of the land in Nevada?
  5. 6. Why did California get populated so quickly?
  6. 9. What structure was made into a house in Kansas?