Chapter 5 Vocabulary

7. A large population concentration made up of several large and many smaller cities, such as the areas between Boston and Washington D.C.
9. Process by which a body of water becomes too rich in dissolved nutrients, leading to plant growth that depletes oxygen in the water.
11. Precipitation carrying large amounts of dissolved acids, which kills wildlife and damages buildings, ofrests, and crops.
12. A network of safe houses in the United States that helped thousands of enslaved people to escape to freedom.
14. The removal of all trees in a stand of timber.
15. A channel or pipeline for carrying a large quantity of flowing water.
16. 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.
17. A smaller river or stream that feeds into a larger river.

1. Economy that emphasizes services and technology rather than industry and manufacturing.
2. A farming method used in dry regions in which crops are grown which rely on the natural precipitation.
3. A boundary in the eastern United States where the higher land of the Piedmont drops to the lower Atlantic Coastal Plain.
4. A mild climate region in the southern and southwestern portions of the United States.
5. A concentrated region of manufacturing industries in the northeastern and midwestern United States.
6. A High point or ridge that determines the directions that rivers flow.
8. Haze caused by the interaction of ultraviolet solar radiation with chemical fumes from automobile exhausts and other pollution sources.
10. Musical form that developed in the United States in the early 1900s, blending African rhythms and European harmonies.
13. The source of a stream or river.
18. To change residence from a country to begin living permanently in another country.