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Cards In This Set
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Why does groundwater represent such an obvious source of fresh water? What are some advantages and disadvantages to using groundwater as a water source?
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Ground water was filtered through the ground and is everywhere, it is easily replenished |
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What are some advantages to using groundwater as a water source?
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Advantages to ground water is it is everywhere, and already been filtered
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What are some disadvantages to using groundwater as a water source?
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Disadvantages can cause subsidence where it is over pumped, water table decline, reversal of water table slope and salt water intrusion and sinkhole formation
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Through what types of materials does groundwater flow? What are porosity and permeability? |
Ground water flows through porous and permeable materials; porous are voids in the soil and permeability means the water can readily pass-through those porous materials
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How are these factors important to an aquifer?
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These factors are important to aquifer because you are looking for an aquifer with high permeability so it is easily recharged and pumped out and so you want a high porosity as well with that a lot of space for it
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What is karst, and how is groundwater flow different in karst aquifers than in sand and gravel aquifers?
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Karst topography is in limestone and a landscape that includes caves and sinkholes- caused by the dissolution of limestone- Karst aquifers are different than sand and gravel aquifers because ground water flow goes more quickly through karst systems but is unfiltered
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What weak acid is responsible for dissolution of bedrock in most karst areas and what is its source?
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Carbonic Acid –when rain water absorbs atmospheric carbon dioxide – forms carbonic acid
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What is the definition of an aquifer?
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An aquifer is a rock or unconsolidated deposits that are sufficiently porous and permeable to be useful as a source of water
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An aquitard?
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Aquitard-low permeability materials that water is hard to flow through – very slowly-decades
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What are the zone of saturation.
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Zone of saturation: where pore spaces are completely filled with water
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What are the common measures of water quality?
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Common measures are dissolved ions, biological populations (bacteria) and synthetic chemicals |
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Which contains higher concentrations of dissolved ions, surface water or groundwater?
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Ground water has a higher concentration of dissolved ions
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Which is more difficult to clean if polluted, surface water or groundwater?
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Ground water is harder to clean if polluted
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What is the best way to determine groundwater flow direction in karst aquifers?
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Dyetracing
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Why is industry considered the largest water user, whereas agriculture is the largest water consumer?
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Industry uses and recycles more and goes through the cycle first. Agriculture it uses less but takes longer to go through the cycle
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