After reading Chapter 9, you should be able to:
- Describe the chemical and physical properties of water, and explain what makes them so unusual.
- Explain and illustrate the hydrologic cycle.
- Name the Earth's oceans and locate them on a map of the world.
- Describe the differences in water quality and accessibility between surface and underground water.
- Explain what is happening to the Ogallala aquifer in the Great Plains region of the United States.
- Name the Earth's longest river systems and largest lakes, and locate them on a map of the world.
