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United States

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Across
  1. 1. farming: A farming method used in dry regions in which crops are grown that rely on the natural precipitation.
  2. 2. a channel or pipeline for carrying a large quantity of flowing water.
  3. 5. The source of a steam or river.
  4. 8. River: One of the longest rivers in North America.
  5. 10. haze caused by the interaction of ultraviolet solar radiation.
  6. 13. Plains: The climate of the ______ ________ reflects its location in the center of the continent.
  7. 14. York City: largest city.
  8. 16. Railroad- a network of safe house in the United States that helped thousands of enslaved people escape to freedom.
  9. 18. McKinley: The highest point in the United States.
  10. 19. Divide: A high ridge in the Rocky Mountains.
  11. 20. Islands: Formed when magma erupted from the spot on the seafloor.
  12. 21. A large population concentration made up of several large and many smaller cities.
  13. 24. legal proceeding in which a borrower's rights to a property are relinquished due to his or her inability to make payments on the loan.
  14. 25. ________ threatens many wetland areas, which include marshes, ponds, and swamps.
  15. 26. __________ occurs when the amount of fish that are caught exceeds the amount that can be resupplied.
  16. 29. _________ colonies fought for independence from Britain in the American Revolution.
  17. 30. the removal of all trees in a stand of timber.
  18. 31. A large, powerful windstorm that forms over warm ocean waters.
  19. 32. Line: A boundary in the eastern United States where the higher land of the Piedmont drops to the lower Atlantic Plain.
Down
  1. 1. A high point or ridge that determines the direction rivers flow.
  2. 3. A small river or stream that feeds into a larger river.
  3. 4. musical form that developed in the United States in the early 1900s.
  4. 6. Mountains: The oldest mountain range on the North American continent.
  5. 7. A mild climate region in the southern and southwestern portions of the United States.
  6. 9. ________ is a major cash crop in the South.
  7. 10. Violent spring and summer thunderstorms.
  8. 11. ____________ fishing in the Atlantic and Pacific Oceans and the Gulf of Mexico is important to the U.S.
  9. 12. Dry wind called _________ blows down the eastern slopes of the Rockies.
  10. 15. economy that emphasizes and technology rather than industry and manufacturing.
  11. 17. belt: A concentrated region of manufacturing industries in the northeastern and midwestern United States.
  12. 22. The average ___________ density of the United States is about 87 people per square mile.
  13. 23. market: The United States has always been based on a _______ ________ economy.
  14. 24. Fuel: A resource formed in the Earth by plant and animal remains.
  15. 27. Lakes: Formed when glacier basins filled with water.
  16. 28. _________ coast cities provide important links to the rest of the world trade.