Earth, Our Environment - Class Notes
Chapter 1, The Changing Planet - 04
The Hydrologic Cycle

The hydrosphere is the envelope of water that surrounds the Earth and is another feature that distinguishes Earth from other known planets.

The hydrosphere includes the oceans, rivers, lakes, streams, glaciers, groundwater, and the atmosphere.

Water is constantly exchanged between these "reservoirs" of moisture. By far, the most water is stored in the oceans.

[ Study Figure 1.12 From Text ]

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Prepared by: Charles J. Ammon
January 1997