1. Cities by the water

3. Chicago

4. cruising

5. Site seeing

6. Extreme sports-white water rafting

9. Dams- support cities
A reservoir refers to an artificial lake, used to store water for various uses.

10. Dams-stop water flow

11. Cities by rivers=civilization

12. Cities by rivers = development
Empire State Building
Rialto

13. Las Vegas- city not built by the water = irrigation (piped) from Colarado River

14. Problems with cities by the river= overcrowding
The Hump Interchange, connecting the Century Freeway (I-105) and the Harbor Freeway (I-110) in Los Angeles, California
Problems with cities by the river= overcrowding
Freeway in Texas

15. Above is Mexico-
example of overcrowding
To the left is Beijing-
Pollution in the air