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quiz 11 geol

QuestionAnswer
Permeable rock strata or sediment that transmit groundwater freely are called ________. aquifers
________ would have the largest capacity to naturally remove sewage pollutants slightly clayey sand
When water is pumped from a well, a depression is often produced in the water table. Such a depression is a(n) _______ cone of depression
Which one of the following concerning artesian wells is NOT true When the well penetrates the aquifer, the water rises to the bottom of the aquitard above the aquifer.
Which of the following is associated with areas of karst topography? sinkholes - soluble rock - caverns all of these
A ________ is the icicle-like speleothem that grows down from the roof of a cavern stalactite
________ is the volume of voids or open space in a rock or unconsolidated material. Porosity
The water table is ________. a boundary between saturated rock below and unsaturated rock above
An artesian well is one in which ________. water rises above the top of the aquifer without any pumping
The term karst topography was first used in ________. the Republic of Slovenia, a province of the former Yugoslavia
Hot springs are most numerous in which region of the United States West
Which of the following best describes how geysers erupt? With a slight reduction in pressure, water in a saturated, natural conduit suddenly boils, sending a plume of steam and hot water into the air above the vent
Caves most commonly form in ________ limestone
Porosity is a measure of the volume of open space in rocks and unconsolidated geological materials such as alluvium and soils T
As its name implies, the water table is always very level (flat). F
Most caves and caverns originate by solution of limestone T
For a well to be characterized as being artesian, water must flow freely at the surface F
Most hot springs in the United States are located in the southeast, especially Georgia F
The formation of stalactites and stalagmites occurs in the zone of saturation F
Lowering of the water table around a pumping well results in a cone of infiltration F
One environmental problem associated with groundwater is land subsidence caused by withdrawal T
Karst topography is most commonly associated with areas underlain by massive sandstone strata. F
The source of heat for most hot springs is hot igneous material beneath the surface T
Sinkholes are actively forming in portions of the southeastern United States T
Created by: yphan on 2011-05-24



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