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Watersheds
surface & groundwater and pollution
Question | Answer |
---|---|
a substance or energy introduced into the environment that has undesired effects | pollutant |
a single identifiable and localized source of water pollution, such as wastewater discharge into a stream | point source water pollution |
the flow of water from rain, snow melt, or other sources over land | runoff |
a single identifiable and localized source of water | point source |
sunken land surface due to underlying compression of earth material as a result of the removal of ground water | subsidence |
pollutants introduced into surface or ground water that are without a specific location source | non-point source water pollution |
an area of land where the surface water and groundwater drain into a particular body of water, separated from each other by drainagge divides | watershed |
a layer of permeable rock that allows water to flow through | aquifer |
water from precipitation that drains into a gully that flows into a stream, which in turns flows into a river, lake, reservoir, estuary, wetland, or the ocean | surface water |
a geographical barrier | divide |
water that collects in cracks and pores in underground soil and rock layers | groundwater |
the natural or artificial removal of surface and sub-surface water from an area | drainage |