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MEMBERSEDUARDO PADGETTHERIBERTO HENRIQUEZJAMIL ATUAN
WATER CYCLE
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• The water cycle also know as the hydrological cycle , continuos movement of water on, above and below the surface of the Earth.
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Importance of Water Cycle
The water cycle is generated from solar energy. 86% of the global evaporation are from oceans.
Oceans reduce their temperature by evaporative cooling.Without the cooling,we might have a warmer
planet.
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Processess
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EvaporationEvaporation is when the sun heats up water in rivers or lakes or the ocean
and turns it into vapor or steam.
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TranspirationA process parallel or similar to evaporation. It is the loss of water vapor from plants and
trees, particularly perspiration of plants.
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CondensationWater vapor in the air gets cold and
changes back into liquid, forming clouds.
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PrecipitationOccurs when so much water has
condensed that the air cannot hold it anymore.
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Runoff
• Runoff is the movement of landwater to the oceans, chiefly in the form of rivers, lakes, and streams. Runoff can be generated by rainfall or melting of snow/ice.
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InfiltrationInfiltration is the process by which water on the ground surface enters
the soil.
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Ground WaterProcess were the infiltrated water are channeled and
seeped to different bodies of water like oceans, springs, rivers or being pumped out of the land surface.
the soil.
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hola
• allan
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Major sources of drinking water
• Ground water• Surface water • Sea water• Precipitation
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How long does it take a single drop of water to complete the whole cycle?
If a drop of water falls on a hot surface it evaporates almost immediately.
Other drops may soak into the ground and evaporate or be taken up by plants to
transpire into the air over the course of days or weeks.
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Still other drops may flow into rives or lakes or oceans where the time to evaporation is years to hundreds of years.
Water falling as snow onto glaciers and the antarctic may be tied up as ice for thousands of years, water seeping into deep underground reservoirs may be there as long as 10,000 years.
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Is precipitation water pure water ?
Water is never found in a pure state in nature.Both ground water and surface water
may contain many microorganisms,gases,inorganic and organic
materials.
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http://www.youtube.com/watch?v=vYBjPE0wekw