11:375:101 Chapter Notes - Chapter 13: Surface Runoff, Virtual Water, Water Use
17 Oct 2018
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Document Summary
Water is super important and is a vital part of our planet and our bodies. 71% of the earth"s surface is covered with water. Our bodies are made up of 60% of water. Access to fresh, clean water is a global issue and an economic issue. Most of the earth"s water is not available to us because it"s all trapped in ice caps and glaciers. Hydrologic cycle - when earth"s freshwater being recycled, purified, and distributed. Zone of saturation - spaces that are completely filled with freshwater. Water table - top of groundwater zone. Aquifers - geological layers such as caverns and porous layers of sand, gravel or rock where groundwater flows through. Surface water - the freshwater from rain and melted snow that flows or is stored in lakes, reservoirs, wetlands, etc. Surface runoff - precipitation that does not soak into the ground or return to the atmosphere.
