geo12 - CHAPTER 12 Geology 12.1 The global water cycle or...

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CHAPTER 12 Geology 12.1 The global water cycle, or hydrologic cycle, involves the movement or transfer of water from one of Earth’s storage compartments, such as oceans, lakes, and the atmosphere, to another. The water cycle can be viewed as water moving from the oceans to the atmosphere, falling from the atmosphere as rain and snow, and then returning to the oceans as surface runoff and subsurface flow or to the atmosphere by evaporation. Water is heterogeneous. Water residence time- varies from a few days to many thousands of years, depending on its specific location. Transpiration is the loss of water by plants to the atmosphere The flow of water: o Evaporation from oceans to the atmosphere o Precipitation to oceans o Transfer of water from atmosphere to land o Evaporation to atmosphere from land o Precipitation to land o Runoff of surface water and groundwater from land to oceans 12.2 Surface runoff has important affects on both: o Transport of materials
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geo12 - CHAPTER 12 Geology 12.1 The global water cycle or...

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