Freshwater Resources

CHAPTER

the BIG ideathe BIG idea

CHAPTER OUTLINE

Fresh water is a limited resource and is essential for human society.

Fresh water is an essential resource.

Society depends on clean and safe water.

Water shortages threaten society.

NEW CHAPTER

12.212.2

12.112.1

12.312.3

CHAPTER RESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

Fresh water is an essential resource.

SECTION OUTLINESECTION OUTLINE

aquaculture

irrigationFresh water is essential for life and is used for many human activities.

farming

industry

transportation and recreation

fisheries and aquaculture

energy

living organisms

lock

dam

12.112.1

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

concentration

Society depends on clean and safe water.

SECTIONOUTLINESECTIONOUTLINE

septic system

point-source pollution

sewage system

Water is treated for safe drinking.

Water is stored and distributed.

Water is drawn from a river or lake.

Water is treated.nonpoint-source pollution

12.212.2

See a water treatment plant in action.

VISUALIZATION CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

concentration

Society depends on clean and safe water.

SECTIONOUTLINESECTIONOUTLINE

septic system

point-source pollution

sewage system

Water is treated for safe drinking. Pollution can harm the water supply.

nonpoint-source pollution

12.212.2

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

Water shortages threaten society.

SECTIONOUTLINESECTIONOUTLINE

drought

desalination

Drought and overuse can cause water shortages.

Lake Chad has shrunk over the past 30 years.

12.312.3

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

Water shortages threaten society.

SECTIONOUTLINESECTIONOUTLINE

drought

desalination

Drought and overuse can cause water shortages.

Americans use an average of 168 liters per person each day.

shower 21%

tap 12%

bath 9%

dish washing 3%

toilet leaks 5%toilet flushes 29%

washing machine 21%

SOURCE: U.S. Environmental Protection Agency

12.312.3

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

Water shortages threaten society.

SECTIONOUTLINESECTIONOUTLINE

drought

desalination

Drought and overuse can cause water shortages.

Americans use an average of 168 liters per person each day.

12.312.3

Review past water usage and try to determine how long the water in an aquifer will last.

VISUALIZATION

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

I. Fresh water is an essential resource.

A. Fresh water supports life.

C. Dams and other structures alter rivers.

KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY

Fresh water is an essential resource.

1. Farming

2. Industry

B. Most human activities require water.aquaculture

irrigation

lock

dam

3. Transportation and Recreation

4. Fisheries and Aquaculture

5. Energy

12.112.1

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY

Society depends on clean and safe water.

II. Society depends on clean and safe water.

A. Treatment makes water safe for drinking.

B. Wastewater is treated and released.

1. Quality Standards

2. Treatment of Drinking Water

C. Water pollution comes from many sources.

D. Water pollution can be prevented.

concentration

septic system

point-source pollution

sewage system

nonpoint-source pollution

1. Sewage System

2. Septic System

12.212.2

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

III. Water shortages threaten society.

A. Water shortages are a global problem.

1. The Need for Conservation

2. Conservation Practices

B. Overuse can cause water shortages.

KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY

Water shortages threaten society.

C. Fresh water can be conserved.

drought

desalination

1. Shortages

2. Pollution

D. People can balance water needs and uses.

3. New Sources

12.312.3

CHAPTERRESOURCESCHAPTERRESOURCES

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