Water is a ubiquitous chemical substance that is composed of hydrogen and oxygen and is vital for all known forms of life.

In typical usage, water refers only to its liquid form or state, but the substance also has a solid state, ice, and a gaseous state, water vapor or steam. Water covers 71% of the Earth's surface. On Earth, it is found mostly in oceans and other large water bodies, with 1.6% of water below ground in aquifers and 0.001% in the air as vapor, clouds (formed of solid and liquid water particles suspended in air), and precipitation. Oceans hold 97% of surface water, glaciers and polar ice caps 2.4%, and other land surface water such as rivers, lakes and ponds 0.6%. A very small amount of the Earth's water is contained within biological bodies and manufactured products.

Water on Earth moves continually through a cycle of evaporation or transpiration (evapotranspiration), precipitation, and runoff, usually reaching the sea. Over land, evaporation and transpiration contribute to the precipitation over land.

Clean, fresh drinking water is essential to human and other lifeforms. Access to safe drinking water has improved steadily and substantially over the last decades in almost every part of the world. There is a clear correlation between access to safe water and GDP per capita. However, some observers have estimated that by 2025 more than half of the world population will be facing water-based vulnerability. A recent report (November 2009) suggests that by 2030, in some developing regions of the world, water demand will exceed supply by 50%. Water plays an important role in the world economy, as it functions as a solvent for a wide variety of chemical substances and facilitates industrial cooling and transportation. Approximately 70% of freshwater is consumed by agriculture.

From Wikipedia under the GNU Free Documentation License
Wed Feb 3 05:45:17 2010

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From Yahoo Image Search: "Water"
Tue Feb 9 13:16:11 2010

Newz Source Blog Archive Bacteria in water supply
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Newz Source Blog Archive Bacteria in water supply

unknown

Mon, 08 Feb 2010 11:00:36 GM

the Queenstown Lakes District Council yesterday issued a press release stating E.coli had been detected in the Arrowtown . water. supply and advising residents to boil drinking . water. until Friday morning. ...

How Much Water Should Infants Drink ? | baby
yingerbaobao.com
How Much Water Should Infants Drink ? | baby

admin

Mon, 08 Feb 2010 07:41:56 GM

And where can I find an article about how much . water. an infant should drink ?

Absolute Water System Whole House Well Water Filter
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Absolute Water System Whole House Well Water Filter

absolutewatersystem

Mon, 08 Feb 2010 07:05:58 GM

If you obtain your household's drinking . water. from a well, chances are you are consuming far more than . water. , as many impurities and contaminates are found in well . water. . Absolute . Water. System has developed the whole house well . water. ...

From Google Blog Search: "Water"
Mon Feb 8 15:06:47 2010

See also:

  • EvianEvian
    evian.com
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  • Fern Brook Sping WaterFern Brook Sping Water
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Custom search only Water sites:

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Thu Dec 3 14:47:52 2009
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