Question 1

Pumping vast quantities of water locally ____________.

Accepted Answer

A) raises the local water table 
B) lowers the local water table,forming a cone-shaped depression 
C) lowers the local water table,forming a cylindrical depression 
D) does not affect the water table 
A) raises the local water table 
B) lowers the local water table,forming a cone-shaped depression 
C) lowers the local water table,forming a cylindrical depression 
D) does not affect the water table B

Question 2

If a material is highly permeable,it ____________.

Accepted Answer

A) must be porous 
B) cannot be porous 
C) must be fractured 
D) must either have substantial porosity or be fractured 
A) must be porous 
B) cannot be porous 
C) must be fractured 
D) must either have substantial porosity or be fractured D

Question 3

Hard water results from relatively high concentrations of dissolved ____________.

Accepted Answer

A) calcium and magnesium 
B) francium and cesium 
C) sodium 
D) potassium 
A) calcium and magnesium 
B) francium and cesium 
C) sodium 
D) potassium A

Question 4

Which statement about recharge areas is NOT true?

Accepted Answer

A) Recharge areas typically are elevated with respect to neighboring areas. 
B) Recharge areas are regions of relatively high precipitation. 
C) Recharge areas are the same as discharge areas. 
D) Recharge areas are areas where water infiltrates the sediment from above. 
A) Recharge areas typically are elevated with respect to neighboring areas. 
B) Recharge areas are regions of relatively high precipitation. 
C) Recharge areas are the same as discharge areas. 
D) Recharge areas are areas where water infiltrates the sediment from above.

Question 5

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 6

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 7

Dissolution of rock produces ____________.

Accepted Answer

A) primary porosity 
B) primary permeability 
C) secondary porosity 
D) a reduction in primary porosity 
A) primary porosity 
B) primary permeability 
C) secondary porosity 
D) a reduction in primary porosity

Question 8

Sinkholes are a concern primarily for residents whose dwellings are constructed atop ____________.

Accepted Answer

A) sandstone 
B) shale 
C) limestone 
D) granite 
A) sandstone 
B) shale 
C) limestone 
D) granite

Question 9

Groundwater:

Accepted Answer

A) rarely if ever contains dissolved ions 
B) dissolves calcite and limestone 
C) can contain dissolved minerals but can never precipitate minerals out of solution 
D) can precipitate minerals but only if the ions that would form the mineral in question are undersaturated in the water 
A) rarely if ever contains dissolved ions 
B) dissolves calcite and limestone 
C) can contain dissolved minerals but can never precipitate minerals out of solution 
D) can precipitate minerals but only if the ions that would form the mineral in question are undersaturated in the water

Question 10

Land subsidence is likely when ____________.

Accepted Answer

A) groundwater recharge occurs 
B) the Ca and Mg content of groundwater increases 
C) the water table changes 
D) discharge lowers the water table 
A) groundwater recharge occurs 
B) the Ca and Mg content of groundwater increases 
C) the water table changes 
D) discharge lowers the water table

Question 11

In unfractured rock and sediment,water molecules usually take a ____________.

Accepted Answer

A) straight path 
B) wandering path 
C) circular path 
A) straight path 
B) wandering path 
C) circular path

Question 12

An artesian well is one that ____________.

Accepted Answer

A) discharges groundwater at ground surface without pumping 
B) has its intake sited within the saturated zone of an unconfined aquifer 
C) has intake sited within the unsaturated zone of an unconfined aquifer 
D) has its recharge area at an elevation below sea level 
A) discharges groundwater at ground surface without pumping 
B) has its intake sited within the saturated zone of an unconfined aquifer 
C) has intake sited within the unsaturated zone of an unconfined aquifer 
D) has its recharge area at an elevation below sea level

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

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 15

The city of Venice,Italy,has largely submerged beneath the sea because of ____________.

Accepted Answer

A) polar ice caps melting due to global warming 
B) extensive nearby groundwater mining and sediment compaction 
C) tectonic forces related to the gradual,ongoing collision of Africa and Europe 
D) None of the above are correct;Venice was built underwater during the Middle Ages. 
A) polar ice caps melting due to global warming 
B) extensive nearby groundwater mining and sediment compaction 
C) tectonic forces related to the gradual,ongoing collision of Africa and Europe 
D) None of the above are correct;Venice was built underwater during the Middle Ages.

Question 16

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

Question 17

Any place where groundwater naturally flows out of the surface of Earth 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 18

Perched water tables occur ____________.

Accepted Answer

A) above the regional water table,within permeable rock or sediment 
B) above the regional water table,within impermeable rock or sediment 
C) below the regional water table,within impermeable rock or sediment 
D) below the regional water table,within permeable rock or sediment 
A) above the regional water table,within permeable rock or sediment 
B) above the regional water table,within impermeable rock or sediment 
C) below the regional water table,within impermeable rock or sediment 
D) below the regional water table,within permeable rock or sediment

Question 19

If groundwater is clear,it can be assumed that it is drinkable.

Accepted Answer

A) True 
 B)False

Question 20

Freshwater lakes are always discharge areas.

Accepted Answer

A) True 
 B)False

Exam 19: A Hidden Reserve: Groundwater

Pumping vast quantities of water locally ____________.

If a material is highly permeable,it ____________.

Hard water results from relatively high concentrations of dissolved ____________.

Which statement about recharge areas is NOT true?

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

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

Dissolution of rock produces ____________.

Sinkholes are a concern primarily for residents whose dwellings are constructed atop ____________.

Groundwater:

Land subsidence is likely when ____________.

In unfractured rock and sediment,water molecules usually take a ____________.

An artesian well is one that ____________.

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

As a rule,groundwater always flows from areas ____________.

The city of Venice,Italy,has largely submerged beneath the sea because of ____________.

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

Any place where groundwater naturally flows out of the surface of Earth is termed a ____________.

Perched water tables occur ____________.

If groundwater is clear,it can be assumed that it is drinkable.

Freshwater lakes are always discharge areas.

Cosmology and the Birth of Earth

Journey to the Center of the Earth

Drifting Continents and Spreading Seas

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rock

Pages of Earths Past: Sedimentary Rocks

Metamorphism: A Process of Change

The Wrath of Vulcan: Volcanic Eruptions

A Violent Pulse: Earthquakes

Cracks, crags, and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of Earth

Squeezing Power From a Stone: Energy Resources

Riches in Rock: Mineral Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: The Geology of Running Water

Restless Realm: Oceans and Coasts

An Envelope of Gas: Earths Atmosphere and Climate

Dry Settings: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

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