The Hydrosphere reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Hydrosphere

Hydrosphere (Greek hydro- means "water") in physical geography, describes collective mass of water that is found under, on and over the surface of the Earth.

Water comprising hydrosphere is found in various forms :

• under the Earth's surface and in rocks
• in biosphere - plants and animals
• water covering the Earth's surface in liquid and solid forms (ice, snow)
• atmospheric water in clouds and water vapour

Other spheres are :

• lithosphere
• atmosphere
• asthenosphere

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