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Elnaz Akbari

on 29 April 2010

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Transcript of water

Liquid water Tree typs or water Surface water Surface water The water cycle Steps: Rain:the rain gets stored into the ground
thats what we call'ground water storage'. The ground water:after a while the ground water dicarges
into the oceans this is what we call'water storage in the oceans' The water in to oceans;after a while goes up to the clouds;this is what we call evaporation. Water storage in the atmosphere:or in other words precipitation;precipitation is when Water that falls to the ground, in solid or liquid form, including rain, snow, sleet, and hail. All precipitation is measured in its liquid water equivalent. Precipitation comes from clouds, which are formed of water vapor evaporated from the land and oceans. This vapor condenses into tiny water droplets or ice crystals. When these droplets grow large enough, and the temperature is above freezing, they fall as rain. If the temperature is cold enough for them to freeze, they fall as snow, sleet, or hail. Sleet is snow that has melted and refrozen on the way down. Hailstones form in the powerful gusty winds of thunderstorms, as frozen water droplets buffeted by the air are covered with layers of ice until they’re too heavy to stay aloft and fall as hail.

Our water resources ice:76% ground water:23% lakes,rivers,wetlands:0.34% gaseous water,soil moisture,and other water:0.66%
fresh water:3% Water We need it for everything... Water sheds
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