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Goundwater
Beginning of essay
Although 70 percent of the Earth's surface is covered by water, 97 percent of it is contained in the oceans and is too salty to drink (Cunningham and Saigo, 1992). Therefor, fresh water is a precious resource that in some areas of the world is so scarce, that people will fight wars over it. About ....
Middle of essay
....in the air, in the ground and on the surface of the Earth. It starts when water evaporates from plants, the ground, lakes, rivers and oceans. This is called evapotranspiration.
As the vapor rises, the surrounding air gets colder and colder. The dew point is the temperature at which water begins to condense (change into it's liquid form). At the dew point, it clouds form. Clouds consist of tiny water droplets which remain suspended in the air until they become too large for turbulence to hold.... |
| Number of words: 2024 |
Approximate pages: 8 |
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