Question 1

Shales can have substantial porosity but have low _____.

Accepted Answer

A) cement 
B) permeability 
C) void space 
D) pore space 
E) conductivity 
A) cement 
B) permeability 
C) void space 
D) pore space 
E) conductivity

Question 2

Heavy use of ground water can cause a region's water table to ____.

Accepted Answer

A) flow faster 
B) disappear 
C) increase in thickness 
D) rise toward the ground surface 
E) drop to deeper depths 
A) flow faster 
B) disappear 
C) increase in thickness 
D) rise toward the ground surface 
E) drop to deeper depths

Question 3

A ________ is a place where water flows naturally from rocks onto the ground surface.

Accepted Answer

A) ground-water sink 
B) well 
C) spring 
D) capillary 
E) bore 
A) ground-water sink 
B) well 
C) spring 
D) capillary 
E) bore

Question 4

The site selected for the disposal of high level radioactive wastes is the ocean.

Accepted Answer

A) True 
 B)False

Question 5

Heavily pumped wells near a coast can be contaminated by ____.

Accepted Answer

A) saltwater intrusion 
B) radioactive waste 
C) hard water 
D) soft water 
E) high iron water 
A) saltwater intrusion 
B) radioactive waste 
C) hard water 
D) soft water 
E) high iron water

Question 6

Sandstones and gravels make the only aquifers; no other rocks are useful.

Accepted Answer

A) True 
 B)False

Question 7

The addition of new water to the saturated zone is called recharge.

Accepted Answer

A) True 
 B)False

Question 8

___ states that the velocity of ground water equals permeability multiplied by hydraulic gradient.

Accepted Answer

A) Darcy's law 
B) Einstein's equation 
C) Newton's Law 
D) Steno's principle 
A) Darcy's law 
B) Einstein's equation 
C) Newton's Law 
D) Steno's principle

Question 9

A deposit of loose sand may have a porosity of _____ percent.

Accepted Answer

A) 30-50 
B) 20-30 
C) less than 20 
D) 40-50 
E) more than 50 
A) 30-50 
B) 20-30 
C) less than 20 
D) 40-50 
E) more than 50

Question 10

____ are closed depressions found where land surfaces are underlain by limestone bedrock.

Accepted Answer

A) Cirque valleys 
B) Craters 
C) Kettle holes 
D) Sinkholes 
E) Inversions 
A) Cirque valleys 
B) Craters 
C) Kettle holes 
D) Sinkholes 
E) Inversions

Question 11

Groundwater is important in the preservation of _____ which develops when porous buried wood is either filled in or replaced by inorganic silica carried in by ground water.

Accepted Answer

A) preserved wood 
B) petrified wood 
C) petrified material 
D) preserved material 
A) preserved wood 
B) petrified wood 
C) petrified material 
D) preserved material

Question 12

The hydraulic head is defined as __.

Accepted Answer

A) the elevation of the water table 
B) the pore fluid pressure 
C) the velocity of water flow 
D) the slope of the water table 
E) elevation plus pore fluid pressure at a given point 
A) the elevation of the water table 
B) the pore fluid pressure 
C) the velocity of water flow 
D) the slope of the water table 
E) elevation plus pore fluid pressure at a given point

Question 13

___ is becoming a serious problem as demand for drinking water increases in coastal cities.

Accepted Answer

A) Pollution of the ocean's water 
B) Decrease in seawater salinity 
C) Development of fresh-water springs on the seabed 
D) Salt-water intrusion into wells 
A) Pollution of the ocean's water 
B) Decrease in seawater salinity 
C) Development of fresh-water springs on the seabed 
D) Salt-water intrusion into wells

Question 14

A _____ is a deep,cylindrical hole that is dug or drilled into the ground to penetrate an aquifer within the saturated zone.

Accepted Answer

A) pump 
B) well 
C) deep aquifer 
D) cone of depression 
E) water hole 
A) pump 
B) well 
C) deep aquifer 
D) cone of depression 
E) water hole

Question 15

Gasoline leaked from gas station storage tanks is less dense than water and can rise to the top of the water in an aquifer.

Accepted Answer

A) True 
 B)False

Question 16

An unconfined aquifer is recharged rapidly,whereas a confined aquifer recharges slowly.

Accepted Answer

A) True 
 B)False

Question 17

Most caves probably are formed by ground water circulating ___ the water table.

Accepted Answer

A) at 
B) below 
C) above 
D) with an uncertain relation to 
A) at 
B) below 
C) above 
D) with an uncertain relation to

Question 18

Deposits of calcite built up in caves by dripping water are called dripstone or speleothems.

Accepted Answer

A) True 
 B)False

Question 19

In a(an)_____ aquifer water rises above the top of the aquifer when a drill penetrates it.

Accepted Answer

A) artesian 
B) spring 
C) erupting 
D) dry 
A) artesian 
B) spring 
C) erupting 
D) dry

Question 20

___ is the percentage of a rock or sediment that consists of void space.

Accepted Answer

A) Vugosity 
B) Void index 
C) Permeability 
D) Porosity 
E) Holiness 
A) Vugosity 
B) Void index 
C) Permeability 
D) Porosity 
E) Holiness

Exam 17: Ground Water

Shales can have substantial porosity but have low _____.

Heavy use of ground water can cause a region's water table to ____.

A ________ is a place where water flows naturally from rocks onto the ground surface.

The site selected for the disposal of high level radioactive wastes is the ocean.

Heavily pumped wells near a coast can be contaminated by ____.

Sandstones and gravels make the only aquifers; no other rocks are useful.

The addition of new water to the saturated zone is called recharge.

___ states that the velocity of ground water equals permeability multiplied by hydraulic gradient.

A deposit of loose sand may have a porosity of _____ percent.

____ are closed depressions found where land surfaces are underlain by limestone bedrock.

Groundwater is important in the preservation of _____ which develops when porous buried wood is either filled in or replaced by inorganic silica carried in by ground water.

The hydraulic head is defined as __.

___ is becoming a serious problem as demand for drinking water increases in coastal cities.

A _____ is a deep,cylindrical hole that is dug or drilled into the ground to penetrate an aquifer within the saturated zone.

Gasoline leaked from gas station storage tanks is less dense than water and can rise to the top of the water in an aquifer.

An unconfined aquifer is recharged rapidly,whereas a confined aquifer recharges slowly.

Most caves probably are formed by ground water circulating ___ the water table.

Deposits of calcite built up in caves by dripping water are called dripstone or speleothems.

In a(an)_____ aquifer water rises above the top of the aquifer when a drill penetrates it.

___ is the percentage of a rock or sediment that consists of void space.

Introducing Geology,the Essentials of Plate Tectonics,and Other Important Concepts

Earths Interior and Geophysical Properties

The Sea Floor

Plate Tectonics

Mountain Belts and the Continental Crust

Geologic Structures

Earthquakes

Time and Geology

Atoms,Elements and Minerals

Volcanism and Extrusive Rocks

Igneous Rocks, Intrusive Activity, and the Origin of Igneous Rocks

Weathering and Soil

Mass Wasting

Sediment and Sedimentary Rocks

Metamorphism, Metamorphic Rocks, and Hydrothermal Rocks

Streams and Floods

Deserts and Wind Action

Glaciers and Glaciation

Waves,Beaches and Coasts

Geologic Resources

The Earths Companions

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