1. Hydrologic Cycle

2. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Water cycle Figure 10.2 10-3

3. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-6 Ocean/freshwater percentages Figure 10.4 Glaciers and Ice sheets

4. Distribution of Water

5. Freshwater Resources

6. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-5 Earth’s water compartments

7. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-7 Groundwater Figure 10.6

8. Water Table

9. Aquifers and Aquitards

10. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-8 Recharge zone of aquifer Figure 10.7

11. Artesian Wells

13. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-10 Growth of global water use Figure 10.9 Source: Data from L. A. Shiklomanov, “Global Water Resources” in Nature and Resources, vol. 26, p. 34-43, UNESCO, Paris.

14. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-12 Water table/cone of depression Figure 10.15

15. Cone of depression

16. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Mean annual precipitation Figure 10.3 10-4 Source: From Jerome Fellman et al., Human Geography, 4 th ed. © 1995 Times Mirror Higher Education Group, Inc., Dubuque, Iowa. All Rights Reserved. Reprinted by permission.

17. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Water shortage/Yellow River Figure 10.1 10-1

18. Aswan Dam

21. Hoover Dam

23. Between 1911 and 1923, Mulholland's agents quietly purchased 95 percent of water rights to the Owens River. Against overwhelming odds, Mulholland constructed a 233-mile aqueduct across the blistering Mojave Desert to deliver Owens River water to downtown L.A.

24. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-11 Water withdrawals by income Figure 10.10 Source: Data from World Bank, 1992.

25. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Water measurement units 10-2

26. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-9 World’s ten largest rivers

27. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-13 Typical household water use

28. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-14 Water pollutant categories

29. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-15 Oxygen sag Figure 10.20

30. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-16 Watershed degradation Figure 10.23

31. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-17 U.S. river and lake conditions Figure 10.24 Source: Data from USDA and Natural Resources Conservation Service, America’s Private Land: A Geography of Hope, USDA, 1996.

32. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-18 Pollution infiltration Figure 10.26

33. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-19 Oil pollution in the oceans Figure 10.28

34. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-20 Sewage treatment Figure 10.29

35. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-21 Investment in sanitation Figure 10.30 Source: World Bank estimates based on research paper by Dennis Anderson and William Cavendish. “Efficiency and Substitution in Pollution Abatement: Simulation Studies in Three Sectors.”

36. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10-22 Water quality legislation