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hydrosphere

A Dictionary of Biology | 2004 | Copyright

hydrosphere The water on the surface of the earth. Some 74% of the earth's surface is covered with water, 97% (or some 10²¹ kilograms) of which is in the oceans. Icecaps and glaciers contain about 3 × 10¹⁹ kg, rivers about 10¹⁵ kg, lakes and inland seas about 2 × 10¹⁷ kg, and groundwater (down to 4000 metres) about 8 × 10¹⁹ kg. Water in the atmosphere contains only about 10¹⁶ kg.

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hydrosphere

The Oxford Pocket Dictionary of Current English | 2009 | Copyright

hy·dro·sphere / ˈhīdrəˌsfir/ • n. (usu. the hydrosphere) all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.

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"hydrosphere." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

"hydrosphere." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O999-hydrosphere.html

"hydrosphere." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-hydrosphere.html

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hydrosphere

A Dictionary of Earth Sciences | 1999 | | Copyright

hydrosphere The whole of that body of water which exists on or close to the surface of the Earth. The hydrosphere formed as the Earth cooled and atmospheric water condensed.

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AILSA ALLABY and MICHAEL ALLABY. "hydrosphere." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "hydrosphere." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-hydrosphere.html

AILSA ALLABY and MICHAEL ALLABY. "hydrosphere." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-hydrosphere.html

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hydrosphere

A Dictionary of Ecology | 2004 | | Copyright

hydrosphere The total body of water which exists on or close to the surface of the Earth.

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MICHAEL ALLABY. "hydrosphere." A Dictionary of Ecology. 2004. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "hydrosphere." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O14-hydrosphere.html

MICHAEL ALLABY. "hydrosphere." A Dictionary of Ecology. 2004. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-hydrosphere.html

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