Permeability - describes how easily water can flow through layers of soil, Porosity - determines the amount of water that soil sediments can contain., Groundwater - water stored in rock layers underground, Water Table - the upper surface of the groundwater (zone of saturation), Unconfined Aquifer - underground layer of permeable rock that has the water table as its upper boundary., Watershed - region of land that drains water to a rivers and large bodies of water, Runoff - the flow of water occurring on the ground surface, Pollutants - the contamination of water bodies, usually as a result of human activities., Subsidence - the sudden sinking or gradual downward settling of the ground's surface, Surface Water - any body of water above ground, including streams, rivers, lakes, and oceans, Infiltration - the process by which precipitation or water soaks into soils and moves into rocks through cracks and pore spaces., Confined Aquifer - an aquifer that is bounded above and below by impermeable rock..,

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