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3 Cards in this Set
- Front
- Back
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In what ways does the flow of groundwater differ from the flow of water in stream channels? come back too |
-infiltration occurs due to gravity but otherwise, groundwater moves in response to hydraulicpressure - from areas of high water pressure to low pressure and is extremely slow - mm to km per year -flow generally will be towards streams or lakes |
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Describe how water is absorbed into the ground and stored within it |
ground water is held in the pore spaces of the soil, the water comes from precepiation. |
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3. Describe one of the problems which results from the overuse of groundwater |
saltwater intrusion- where overpumpingoccurs in coastalareas, a lowering ofthe water tableallows salinegroundwater totravel further inland,sometimes leading tocontamination of thefreshwater zone |
