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After completing this chapter you will understand: 

  • How the chemical nature of water makes it Earth's most important compound.
  • Why Earth, the water planet, is unique in our Solar System.
  • The role of water in the biosphere, geosphere, and atmosphere.
  • The nature, distribution, and amounts of Earth's water resources.
  • People’s needs and uses of water.
  • People’s impacts on water quality and availability.
  • How water resources can be conserved and protected.

Use the navigation on the left to explore this unit's chapter and investigations.

Investigation 13.1 Next Arrow