Honors Earth Science Final: Groundwater Scantron

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C

Permeable rock strata or sediments that transmit groundwater freely are called _______________.
a) springs
b) perched water tables
c) aquifers
d) aquitards

C

_______________ would have the largest capacity to naturally remove sewage pollutants.
a) well-sorted, coarse gravel
b) limestone with solution channels and caverns
c) sand or permeable sandstone
d) fractured granite

B

When water is pumped from a well a depression is often produced in the water table. Such a depression is called a(n) _______________________.
a) pumping dimple
b) cone of depression
c) perched water table
d) artesian well

D

Which of the following is associated with areas of karst topography?
a) caverns
b) soluble rock
c) sinkholes
d) all of the above

B

________________ is the icicle-like speleothem that grows down from the roof of a cavern.
a) slagdite
b) stalactite
c) stalagmite
d) stalandite

D

_____________ is the volume of voids or open space in a rock or unconsolidated material.
a) permeability
b) space yield
c) saturation index
d) porosity

A

The water table is _____________.
a) the boundary between saturated rock below and unsaturated rock above
b) the boundary between unsaturated bedrock below and saturated bedrock above
c) the boundary between unsaturated bedrock and an underground river
d) an underground mass of partly saturated rock

C

An artesian well is one in which __________.
a) The well is horizontal and the water table is perched
b) the water is warm, fairly saline, and recharged by an affluent stream
c) water rises above the top of the aquifer without any pumping
d) pressurized groundwater rises from a a deep, unsaturated aquifer.

B

The term karst topography was first used in __________.
a) the eastern Canada in areas of fractured igneous and metamorphic rocks
b) the Republic of Slovenia, a province of the former Yugoslavia
c) India near the southern foothills of the Himalayan mountains
d) Australia for the extremely dry interior area near Ayres Rock and alice springs

B

Hot springs are more numerous in which region of the United States?
a) southeast
b) west
c) northeast
d) midwest

C

Which of the following best describes how geysers erupt?
a) water slowly boils in a network of vertical cracks above the water table, sending up a plume of steam and hot water
b) water below the water table slowly boils in a vertical crack or natural conduit, causing a plume of condensed water vapor to rise above the vent
c) with a slight reduction in pressure, water in a saturated natural, natural conduit suddenly boils, sending a plume of stream and hot water into the area above the vent
d) water suddenly boils in disconnected voids and cracks above the water table, causing the aquifer to exposivley fragment

D

Caves most commonly form in ____________.
a) quartzite
b) shale
c) sandstone
d) limestone

C

What is the percent of freshwater in Earth's hydrosphere that is tied up in ice sheets and glaciers?
a) 14
b) 71
c) 85
d) 99

D

In order for water to flow unpumped, the top of an artesian well must be below the ____________.
a) cappilary fringe
b) confining layer
c) aquifer
d) pressure surface

A

The Ogalla aquifer is not below the sate of _____________.
a) north dakota
b) kansas
c) nebraska
d) oklahoma

C

Dripstone is made of ___________.
a) granite
b) obsidian
c) travertine
d) carbon

B

Caverns are most commonly carved out of limestone by ______________.
a) hydrochloric acid
b) carbonic acid
c) sulfuric acid
d) folic acid

C

A narrow tube of calcite on the ceiling of a cave is a _____________.
a) stalagmite
b) column
c) soda straw
d) karst tube

D

Karst topography is named for the KRS region in ___________________.
a) germany
b) florida
c) carlisle
d) slovenia

B

The hydraulic gradient is the __________________.
a) rate water flows through a material
b) slope of the water table
c) dependent on the permeability of a material
d) porosity of a material

True

Porosity is a measure of the volume of open space in rocks and unconsolidated geological materials such as alluvium and soils

False

As its name implies, the water table is always very level (flat)

True

Most caves and caverns originated by solution of limestone

False

Most hot springs in the united states are located in the southeast, especially in georgia

False

The formation of stalactites and stalagmites occur in the zone of saturation

False

Lowering of the water table around a pumping well results in a cone of infiltration

True

Our environmental problem associated with groundwater is land subsidence caused withdrawal

False

Karst topography is most commonly associated with areas underlain by massive sandstone strata

True

The source of heat for most hot springs is hot igneous material beneath the surface

True

Sinkholes are actively forming in portions of the southeastern United States.

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