Visualizing Environmental Science

243

Stuart Franklin/Magnum Photo©

CHAPTER OUTLINE

The Importance of Water 244

s Properties of Water

s The Hydrologic Cycle and Our Supply

of Fresh Water

Water Resource Problems 246

s Aquifer Depletion

s Overdrawing of Surface Waters

s Salinization of Irrigated Soil

s Global Water Issues

Water Management 254

s Dams and Reservoirs: Managing the Columbia River

s Water Conservation

■ Environmental InSight: Water Conservation

Water Pollution 258

s Types of Water Pollution

■ What a Scientist Sees: Oligotrophic

and Eutrophic Lakes

s Sources of Water Pollution

s Groundwater Pollution

Improving Water Quality 264

s Purification of Drinking Water

s Municipal Sewage Treatment

s Controlling Water Pollution

■ Case Study: China’s Three Gorges Dam

CHAPTER PLANNER✓✓

❑ Study the picture and read the opening story.

❑ Scan the Learning Objectives in each section:

p. 244 ❑ p. 246 ❑ p. 254 ❑ p. 258 ❑ p. 264 ❑

❑ Read the text and study all figures and visuals.

Answer any questions.

Analyze key features

❑ National Geographic Map, p. 252

❑ Environmental InSight, p. 257

❑ What a Scientist Sees, p. 260

❑ Process Diagram, p. 264 ❑ p. 265 ❑

❑ Case Study, p. 269

❑ Stop: Answer the Concept Checks before

you go on:

p. 246 ❑ p. 254 ❑ p. 256 ❑ p. 263 ❑ p. 268 ❑

End of Chapter

❑ Review the Summary and Key Terms.

❑ Answer What is happening in this picture?

❑ Answer the Critical and Creative Thinking Questions.