Question 1

Geysers periodically boil and erupt because .

Accepted Answer

A)  new groundwater flows in to replace that lost in the prior eruption, this takes time 
B)  each injection of hot magma at depth triggers another episode of boiling in groundwater 
C)  the god Vulcan is at work at his subterranean forge 
D)  great pressures from deep water- filled chambers prevent water from boiling until higher temperatures are reached; eventually enough heat is supplied by the hot (volcanic) rocks to expand the water and let it boil anyway 
A)  new groundwater flows in to replace that lost in the prior eruption, this takes time 
B)  each injection of hot magma at depth triggers another episode of boiling in groundwater 
C)  the god Vulcan is at work at his subterranean forge 
D)  great pressures from deep water- filled chambers prevent water from boiling until higher temperatures are reached; eventually enough heat is supplied by the hot (volcanic) rocks to expand the water and let it boil anyway

Question 2

What proportion of the world's water for industrial use (cooling, solvation, transport, manufacturing etc.) is supplied by groundwater aquifers?

Accepted Answer

A)  87% 
B)  40% 
C)  25% 
D)  50% 
A)  87% 
B)  40% 
C)  25% 
D)  50%

Question 3

An aquifer is .

Accepted Answer

A)  a saturated, porous, and permeable layer or stratum that has high water flow 
B)  the best place to dispose of soluble toxic waste 
C)  a layer or stratum in which groundwater flows downward to the water table 
D)  an unsaturated bed or stratum below a spring 
A)  a saturated, porous, and permeable layer or stratum that has high water flow 
B)  the best place to dispose of soluble toxic waste 
C)  a layer or stratum in which groundwater flows downward to the water table 
D)  an unsaturated bed or stratum below a spring

Question 4

Which one of the following concerning artesian wells is false?

Accepted Answer

A)  The aquifer is generally inclined, and it is saturated to an elevation above the point where the well penetrates the aquifer. 
B)  When the well penetrates the aquifer, the water rises to the bottom of the aquitard above the aquifer. 
C)  The well penetrates an aquifer underlain by an impermeable bed. 
D)  The well penetrates an aquifer overlain by an aquitard. 
A)  The aquifer is generally inclined, and it is saturated to an elevation above the point where the well penetrates the aquifer. 
B)  When the well penetrates the aquifer, the water rises to the bottom of the aquitard above the aquifer. 
C)  The well penetrates an aquifer underlain by an impermeable bed. 
D)  The well penetrates an aquifer overlain by an aquitard.

Question 5

An artesian well is one in which .

Accepted Answer

A)  water has enough head to rise above the top of the aquifer without any pumping 
B)  pressurized groundwater rises from a deep, unsaturated aquifer 
C)  the well is horizontal and the water table is perched 
D)  the water is warm, fairly saline, and recharged by a stream 
A)  water has enough head to rise above the top of the aquifer without any pumping 
B)  pressurized groundwater rises from a deep, unsaturated aquifer 
C)  the well is horizontal and the water table is perched 
D)  the water is warm, fairly saline, and recharged by a stream

Question 6

What proportion of the world's water for agriculture (irrigation, greenhouses, golf courses) is supplied by groundwater aquifers?

Accepted Answer

A)  50% 
B)  87% 
C)  25% 
D)  40% 
A)  50% 
B)  87% 
C)  25% 
D)  40%

Question 7

Which of the following is not a general characteristic of groundwater?

Accepted Answer

A)  constant temperature year round 
B)  rarely contains dissolved constituents 
C)  supply is independent of short droughts 
D)  rarely contains suspended sediment 
A)  constant temperature year round 
B)  rarely contains dissolved constituents 
C)  supply is independent of short droughts 
D)  rarely contains suspended sediment

Question 8

Excessive groundwater withdrawals can cause .

Accepted Answer

A)  porosity in the aquifer to increase as the water is removed 
B)  the cone of depression to invert 
C)  the water table to decline in elevation and land to subside 
D)  uplift through expansion of the dewatered aquifer 
A)  porosity in the aquifer to increase as the water is removed 
B)  the cone of depression to invert 
C)  the water table to decline in elevation and land to subside 
D)  uplift through expansion of the dewatered aquifer

Question 9

From the typical hydrologic properties of materials, which would make the best aquifer considering just the water delivery, not its turbidity or chemistry?

Accepted Answer

A)  granite, limestone, sandstone 
B)  clay, sand, soil 
C)  basalt, granite, sandstone 
D)  basalt, gravel, limestone 
A)  granite, limestone, sandstone 
B)  clay, sand, soil 
C)  basalt, granite, sandstone 
D)  basalt, gravel, limestone

Question 10

Considering their relative density and solubility in water, how would hazardous substances behave that accidentally entered a groundwater system?

Accepted Answer

A)  Sulphuric and nitric acids would sink to the bottom of the aquifer; kerosene would accumulate as a layer just below the water table. 
B)  Gasoline and kerosene would float on the water table; ethyl alcohol would dissolve and disperse in the groundwater. 
C)  E- coli bacteria may build up in groundwater but can be diluted or rinsed away with sufficient input of natural surface waters such as farm runoff. 
D)  Gasoline and kerosene would float on the water table, but most pesticides break down chemically when they reach the water table. 
A)  Sulphuric and nitric acids would sink to the bottom of the aquifer; kerosene would accumulate as a layer just below the water table. 
B)  Gasoline and kerosene would float on the water table; ethyl alcohol would dissolve and disperse in the groundwater. 
C)  E- coli bacteria may build up in groundwater but can be diluted or rinsed away with sufficient input of natural surface waters such as farm runoff. 
D)  Gasoline and kerosene would float on the water table, but most pesticides break down chemically when they reach the water table.

Question 11

Where are the most famous geyser in the world?

Accepted Answer

A)  Yellowstone National Park, U.S. 
B)  Banff Hot Springs in the Canadian Rockies 
C)  Iceland's Groundwater Preserve 
D)  Ottawa's famous bombastic effluent 
A)  Yellowstone National Park, U.S. 
B)  Banff Hot Springs in the Canadian Rockies 
C)  Iceland's Groundwater Preserve 
D)  Ottawa's famous bombastic effluent

Question 12

are specific features of karst topography.

Accepted Answer

A)  Streams flowing into depressions and continuing underground 
B)  Perched water table springs on hillsides 
C)  Perennial streams fed by large springs 
D)  Numerous artesian wells in a given area 
A)  Streams flowing into depressions and continuing underground 
B)  Perched water table springs on hillsides 
C)  Perennial streams fed by large springs 
D)  Numerous artesian wells in a given area

Question 13

In Darcy's Law for flow velocity written as: V = (K/n) × (h/l), what does K stand for?

Accepted Answer

A)  porosity 
B)  capacity 
C)  hydraulic gradient 
D)  permeability 
A)  porosity 
B)  capacity 
C)  hydraulic gradient 
D)  permeability

Question 14

The travertine hot spring deposits at Mammoth Hot Springs, Yellowstone National Park, are more spectacular than most. Around the immediate area are either unconsolidated glacial deposits or Tertiary volcanics. What rock probably lies deeper beneath the hot springs to account for all the travertine deposits?

Accepted Answer

A)  shale 
B)  quartzite 
C)  limestone 
D)  rhyolite 
A)  shale 
B)  quartzite 
C)  limestone 
D)  rhyolite

Question 15

Groundwater is tightly held by surface tension to mineral grains or other soil particles in the

Accepted Answer

A)  zone of saturation 
B)  aquiclude 
C)  gitchee gumee 
D)  capillary fringe 
A)  zone of saturation 
B)  aquiclude 
C)  gitchee gumee 
D)  capillary fringe

Question 16

The fastest groundwater flows would be expected for an aquifer with .

Accepted Answer

A)  high porosity and many small pores 
B)  high specific retention and low permeability 
C)  low gradients and low permeability with a few very large pores 
D)  high gradients (hydraulic head) and high permeability 
A)  high porosity and many small pores 
B)  high specific retention and low permeability 
C)  low gradients and low permeability with a few very large pores 
D)  high gradients (hydraulic head) and high permeability

Question 17

How do we know which direction ground water will flow?

Accepted Answer

A)  It is generally the same as the prevailing wind direction. 
B)  It flows perpendicular to the water table contours, in a downhill direction. 
C)  It is parallel to local stream flow, just slower. 
D)  Dye or chemical tracer tests are required, often requiring multiple wells and months. 
A)  It is generally the same as the prevailing wind direction. 
B)  It flows perpendicular to the water table contours, in a downhill direction. 
C)  It is parallel to local stream flow, just slower. 
D)  Dye or chemical tracer tests are required, often requiring multiple wells and months.

Question 18

In Darcy's Law for flow velocity written as: V = (K/n) × (h/l), what does h/l stand for?

Accepted Answer

A)  porosity 
B)  capacity 
C)  permeability 
D)  hydraulic gradient 
A)  porosity 
B)  capacity 
C)  permeability 
D)  hydraulic gradient

Question 19

Where does the majority of fresh groundwater reside?

Accepted Answer

A)  flowing in large underground rivers 
B)  as superheated steam in vast hotspring and geyser fields 
C)  in pores within soils and sediments or in fractures in rocks 
D)  as large stationary bodies in enormous underground caverns 
A)  flowing in large underground rivers 
B)  as superheated steam in vast hotspring and geyser fields 
C)  in pores within soils and sediments or in fractures in rocks 
D)  as large stationary bodies in enormous underground caverns

Question 20

Of the choices listed on flow characteristics alone, if the following aquifers became contaminated, which would remain contaminated for the longest time?

Accepted Answer

A)  sand 
B)  clay 
C)  gravel 
D)  limestone 
A)  sand 
B)  clay 
C)  gravel 
D)  limestone

Geysers periodically boil and erupt because .

What proportion of the world's water for industrial use (cooling, solvation, transport, manufacturing etc.) is supplied by groundwater aquifers?

An aquifer is .

Which one of the following concerning artesian wells is false?

An artesian well is one in which .

What proportion of the world's water for agriculture (irrigation, greenhouses, golf courses) is supplied by groundwater aquifers?

Which of the following is not a general characteristic of groundwater?

Excessive groundwater withdrawals can cause .

From the typical hydrologic properties of materials, which would make the best aquifer considering just the water delivery, not its turbidity or chemistry?

Considering their relative density and solubility in water, how would hazardous substances behave that accidentally entered a groundwater system?

Where are the most famous geyser in the world?

are specific features of karst topography.

In Darcy's Law for flow velocity written as: V = (K/n) × (h/l), what does K stand for?

Groundwater is tightly held by surface tension to mineral grains or other soil particles in the

The fastest groundwater flows would be expected for an aquifer with .

How do we know which direction ground water will flow?

In Darcy's Law for flow velocity written as: V = (K/n) × (h/l), what does h/l stand for?

Where does the majority of fresh groundwater reside?

Of the choices listed on flow characteristics alone, if the following aquifers became contaminated, which would remain contaminated for the longest time?

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters

Exam 8: Geologic Time

Geysers periodically boil and erupt because .

What proportion of the world's water for industrial use (cooling, solvation, transport, manufacturing etc.) is supplied by groundwater aquifers?

An aquifer is .

Which one of the following concerning artesian wells is false?

An artesian well is one in which .

What proportion of the world's water for agriculture (irrigation, greenhouses, golf courses) is supplied by groundwater aquifers?

Which of the following is not a general characteristic of groundwater?

Excessive groundwater withdrawals can cause .

From the typical hydrologic properties of materials, which would make the best aquifer considering just the water delivery, not its turbidity or chemistry?

Considering their relative density and solubility in water, how would hazardous substances behave that accidentally entered a groundwater system?

Where are the most famous geyser in the world?

are specific features of karst topography.

In Darcy's Law for flow velocity written as: V = (K/n) × (h/l), what does K stand for?

Groundwater is tightly held by surface tension to mineral grains or other soil particles in the

The fastest groundwater flows would be expected for an aquifer with .

How do we know which direction ground water will flow?

In Darcy's Law for flow velocity written as: V = (K/n) × (h/l), what does h/l stand for?

Where does the majority of fresh groundwater reside?

Of the choices listed on flow characteristics alone, if the following aquifers became contaminated, which would remain contaminated for the longest time?

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters