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