Encyclopedia of Earth: Water
From the earliest life forms to life on earth as we know it today, water has been the one essential constant . Covering roughly seventy percent of the earth’s surface, only a mere fraction is available as freshwater and of that, an even smaller proportion is available for human use and we are only just beginning to truly understand the nature of this most precious and limited resource. In addition to its life sustaining role, water is also one of the most destructive forces on earth, carving breath taking gorges and valleys, yet disasters related to water are responsible for large scale loss of life as well. In its different forms water supports ocean life, retains precious atmospheric samples dating back thousands of years, is a muse for writers, artists, and sculptors, as it tenuously supports a human population of six billion and growing.
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Infiltration and soil water storage
Infiltration Infiltration refers to the movement of water into the soil layer. The rate of this movement is called the infiltration rate. If rainfall intensity is greater than the infiltration rate,...
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Water Cycle Game
SUMMARY Ever wonder where the water you're drinking came from? Where were those water molecules last? With the roll of the dice, you can simulate the journey water molecules may take as they travel within the water cycle. This game,...
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