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19 Cards in this Set
- Front
- Back
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The largest reservoir of water on Earth is:
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The ocean
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The conditions necessary for cave formation exist at countless places on the Earth, yet caves are a relatively rare phenomenon. Which of the following conditions is MOST necessary for cave formation?
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Presence of a soluble rock type.
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Storage of high-level nuclear wastes requires that all of the following conditions exist at the proposed site, EXCEPT:
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Burial within the saturated zone.
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Gaining streams are those where:
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Water from the saturated zone flows into the stream.
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Porosity is:
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The percentage of a rock's volume that is open space
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Groundwater flows:
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From areas of high hydraulic head to areas of low hydraulic head.
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An aquifer is
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A body of saturated rock or sediment through which water can move easily
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Permeability is:
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The capacity of a rock to transmit fluids.
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Caves and cavern systems are formed by:
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Groundwater dissolving limestone and dolomite
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The amount of void space in a sample of fractured limestone is 312 cubic centimenters. The volume of the sample is 2000 cubic centimeters; thus the porosity of the limestone is
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15.6%
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An artesian well is one:
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That rises above the surface of the aquifer without pumping.
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The top of the water saturated zone is known as:
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The water table
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Geysers and hot springs
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Are caused by groundwater being geothermally heated
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Spring water flowing from an unconfined aquifer on a hillside is:
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Likely to be contaminated.
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An example of a rock that may have high porosity but essentially zero permeability is
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Pumice.
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The near-surface zone where all pores are filled with water is called:
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The saturated zone
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A spring forms:
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Where the water table intersects the land surface
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Which rock type below is likely to possess the highest permeability?
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Sandstone.
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The decline in the level of the water table around a pumping well is known as:
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The cone of depression
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