Chapter 5 Crossword Puzzle

1. precipitation carrying large amounts of dissolved acids, which kills wildlife and damages buildings, forests, and crops.
6. the source of a stream or river.
7. haze caused by the interaction of ultraviolet solar radiation with chemical fumes from automobile exhausts and other pollution sources.
8. a channel or pipeline for carrying a large quantity of flowing water.
11. the removal of all trees in a stand of timber.
13. a network of safe houses in the United States that helped thousands of enslaved people escape to freedom.
16. economy that emphasizes services and technology rather than industry and manufacturing.
17. a large population concentration made up of several large and many smaller cities, such as the area between Boston and Washington, D.C.
18. 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.

2. a farming method used in dry regions in which crops are grown that rely only on the natural precipitation.
3. a mild climate region in the southern and southwestern portions of the United States.
4. a smaller river or stream that feeds into a larger river.
5. a large, powerful windstorm that forms over warm ocean waters.
9. a high point or ridge that determines the direction rivers flow.
10. process by which a body of water becomes too rich in dissolved nutrients, leading to plant growth that depletes oxygen in the water the water.
12. a concentrated region of manufacturing industries in the northeastern and midwestern United States.
14. a boundary in the eastern United States where the higher land of the Piedmont drops to the lower Atlantic Coastal Plain.
15. a resource formed in the Earth by plant and animal remains.