Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
1 River Basins & Underground Water Permeable – allows water to pass through Impermeable – does not allow water to pass through Water Table – top of the saturated zone Saturated Zone – the area of permeable rock or soil that is totally filled or saturated with water Unsaturated Zone – the layer of rocks and soil above the water table, no water Aquifer – underground layer of rock or sediment that holds water and allows water to flow through it Artesian Well – water rising because of pressure within an aquifer (natural well) Watershed – all the land that feeds water into a river (river basin) Wetland – land area covered with water during some part or all of the year: marshes, swamps, bogs Estuary – an area where salty ocean water mixes with fresh water from rivers Topography – the study of Earth’s natural and artificial features by surveying and mapping Floodplain – a nearly flat plain along the course of a stream or river that is naturally subject to flooding 2 Biodiversity – the existence of a wide variety of plant and animal species in their natural environments Sediment – matter that settles to the bottom of a liquid such as a lake, river, or pond Runoff – something that drains or flows off such as the rain that flows off from the land into streams Point Source Pollution – pollution that comes from a single identifiable site Non-point Source Pollution – pollution that comes from many places or a source that is not easily identified