Question 1

A dry well will always result whenever the base of the well is above the water table.

Accepted Answer

A) True 
 B)False

Question 2

An impermeable layer of rock or sediment is termed a(n)____________ in hydrogeologic contexts.

Accepted Answer

A)  aquitard 
B)  confined aquifer 
C)  unconfined aquifer 
D)  unsaturated zone 
A)  aquitard 
B)  confined aquifer 
C)  unconfined aquifer 
D)  unsaturated zone

Question 3

A periodic explosive eruption of steam and water from within the ground up through the surface is termed a ____________.

Accepted Answer

A)  flowing artesian well 
B)  geyser 
C)  spring 
D)  recharge area 
A)  flowing artesian well 
B)  geyser 
C)  spring 
D)  recharge area

Question 4

The majority of liquid freshwater within Earth exists in ____________.

Accepted Answer

A)  lakes 
B)  rivers and streams 
C)  pores within rock and sediment 
D)  atmospheric clouds 
A)  lakes 
B)  rivers and streams 
C)  pores within rock and sediment 
D)  atmospheric clouds

Question 5

Most large cave and karst systems have resulted from ____________ dissolving ____________.

Accepted Answer

A)  carbonic acid; limestone 
B)  ascorbic acid; dolostone 
C)  phosphoric acid; shale 
D)  seawater; rock salt 
A)  carbonic acid; limestone 
B)  ascorbic acid; dolostone 
C)  phosphoric acid; shale 
D)  seawater; rock salt

Question 6

Unless it has recently rained,there is no water within pores in the unsaturated zone.

Accepted Answer

A) True 
 B)False

Question 7

Most dissolution of bedrock to form caves takes place ____________.

Accepted Answer

A)  above the water table 
B)  just below the water table 
C)  greater than 10 m below the water table 
A)  above the water table 
B)  just below the water table 
C)  greater than 10 m below the water table

Question 8

Arsenic can be naturally occurring in groundwater.

Accepted Answer

A) True 
 B)False

Question 9

The well shown in this figure has become "contaminated" with naturally occurring salt water,drawn toward it because too much water was pumped from it for too long.What would be an easy way to restore the aquifer,that is,to push the saline groundwater back toward the ocean?

Accepted Answer

A)  Cover the near-shore sea bottom with heavy plastic and concrete to prevent more seawater from entering the aquifer. 
B)  Install a line of wells between your "contaminated" well and the coast, and place desalination equipment in each one, to remove salinity from the aquifer. 
C)  Convert your "contaminated" well into an injection well and begin to pump freshwater into the aquifer through it. 
D)  Increase the amount of rainfall that occurs just inland from your "contaminated" well. 
A)  Cover the near-shore sea bottom with heavy plastic and concrete to prevent more seawater from entering the aquifer. 
B)  Install a line of wells between your "contaminated" well and the coast, and place desalination equipment in each one, to remove salinity from the aquifer. 
C)  Convert your "contaminated" well into an injection well and begin to pump freshwater into the aquifer through it. 
D)  Increase the amount of rainfall that occurs just inland from your "contaminated" well.

Question 10

In a humid climate,the topography of the water table ____________.

Accepted Answer

A)  is unaffected by local surface topography 
B)  precisely mimics the topography of the ground surface 
C)  is a subdued (less steeply sloping) mimic of surface topography 
D)  is an exaggerated (more steeply sloping) mimic of surface topography 
A)  is unaffected by local surface topography 
B)  precisely mimics the topography of the ground surface 
C)  is a subdued (less steeply sloping) mimic of surface topography 
D)  is an exaggerated (more steeply sloping) mimic of surface topography

Question 11

Bioremediation of contaminated groundwater involves ____________.

Accepted Answer

A)  introduction of laboratory-cultured viruses that can dissolve the plume 
B)  pumping nutrients into a contaminant plume to help local bacteria metabolize the plume 
C)  pumping out the contaminated groundwater and using it to irrigate genetically modified crops 
A)  introduction of laboratory-cultured viruses that can dissolve the plume 
B)  pumping nutrients into a contaminant plume to help local bacteria metabolize the plume 
C)  pumping out the contaminated groundwater and using it to irrigate genetically modified crops

Question 12

Water flowing from hot springs ____________.

Accepted Answer

A)  contains more dissolved minerals than water emanating from cool springs 
B)  contains less dissolved minerals than water emanating from cool springs 
C)  is never hotter than 40°C, so it is always safe to bathe in 
D)  only occurs in regions of active volcanic eruption 
A)  contains more dissolved minerals than water emanating from cool springs 
B)  contains less dissolved minerals than water emanating from cool springs 
C)  is never hotter than 40°C, so it is always safe to bathe in 
D)  only occurs in regions of active volcanic eruption

Question 13

As a rule,groundwater always flows from areas ____________.

Accepted Answer

A)  of greater elevation to those of lesser elevation 
B)  of greater water pressure to those of lesser water pressure 
C)  of greater hydraulic head to those of lesser hydraulic head 
D)  near streams to areas beneath mountain ranges 
A)  of greater elevation to those of lesser elevation 
B)  of greater water pressure to those of lesser water pressure 
C)  of greater hydraulic head to those of lesser hydraulic head 
D)  near streams to areas beneath mountain ranges

Question 14

An ordinary (water-producing)well is likely to result when the base of the well extends below the water table.

Accepted Answer

A) True 
 B)False

A dry well will always result whenever the base of the well is above the water table.

An impermeable layer of rock or sediment is termed a(n)____________ in hydrogeologic contexts.

A periodic explosive eruption of steam and water from within the ground up through the surface is termed a ____________.

The majority of liquid freshwater within Earth exists in ____________.

Most large cave and karst systems have resulted from dissolving .

Unless it has recently rained,there is no water within pores in the unsaturated zone.

Most dissolution of bedrock to form caves takes place ____________.

Arsenic can be naturally occurring in groundwater.

The well shown in this figure has become "contaminated" with naturally occurring salt water,drawn toward it because too much water was pumped from it for too long.What would be an easy way to restore the aquifer,that is,to push the saline groundwater back toward the ocean?

In a humid climate,the topography of the water table ____________.

Bioremediation of contaminated groundwater involves ____________.

Water flowing from hot springs ____________.

As a rule,groundwater always flows from areas ____________.

An ordinary (water-producing)well is likely to result when the base of the well extends below the water table.

The Earth in Context

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

The Wrath of Vulcan: Volcanic Eruptions

Pages of Earths Past: Sedimentary Rocks

Metamorphism: a Process of Change

A Violent Pulse: Earthquakes

Crags, cracks, and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of Earth

Riches in Rock: Energy and Mineral Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: the Geology of Running Water

Restless Realm: Oceans and Coasts

Dry Regions: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

Rock Groups

A Surface Veneer: Sediments and Soils

The Rock Cycle

The Earths Interior Revisited: Insights From Geophysics

Memories of Past Life: Fossils and Evolution

An Introduction to Landscapes and the Hydrologic Cycle

Filters

Exam 16: A Hidden Reserve: Groundwater

A dry well will always result whenever the base of the well is above the water table.

An impermeable layer of rock or sediment is termed a(n)____________ in hydrogeologic contexts.

A periodic explosive eruption of steam and water from within the ground up through the surface is termed a ____________.

The majority of liquid freshwater within Earth exists in ____________.

Most large cave and karst systems have resulted from ____________ dissolving ____________.

Unless it has recently rained,there is no water within pores in the unsaturated zone.

Most dissolution of bedrock to form caves takes place ____________.

Arsenic can be naturally occurring in groundwater.

The well shown in this figure has become "contaminated" with naturally occurring salt water,drawn toward it because too much water was pumped from it for too long.What would be an easy way to restore the aquifer,that is,to push the saline groundwater back toward the ocean?

In a humid climate,the topography of the water table ____________.

Bioremediation of contaminated groundwater involves ____________.

Water flowing from hot springs ____________.

As a rule,groundwater always flows from areas ____________.

An ordinary (water-producing)well is likely to result when the base of the well extends below the water table.

The Earth in Context

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

The Wrath of Vulcan: Volcanic Eruptions

Pages of Earths Past: Sedimentary Rocks

Metamorphism: a Process of Change

A Violent Pulse: Earthquakes

Crags, cracks, and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of Earth

Riches in Rock: Energy and Mineral Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: the Geology of Running Water

Restless Realm: Oceans and Coasts

Dry Regions: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

Rock Groups

A Surface Veneer: Sediments and Soils

The Rock Cycle

The Earths Interior Revisited: Insights From Geophysics

Memories of Past Life: Fossils and Evolution

An Introduction to Landscapes and the Hydrologic Cycle

Filters

Most large cave and karst systems have resulted from dissolving .