Question 1

The saturated zone overlies the water table.

Accepted Answer

A) True 
 B)False

Question 2

The amount of ground water is ____ that of all rivers and lakes combined.

Accepted Answer

A)  equal to 
B)  very minor when compared to 
C)  a little less than 
D)  many times 
E)  of uncertain amount compared to 
A)  equal to 
B)  very minor when compared to 
C)  a little less than 
D)  many times 
E)  of uncertain amount compared to

Question 3

___ 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 4

A _______ is a type of hot spring that erupts hot water and steam.

Accepted Answer

A)  geyser 
B)  mud volcano 
C)  travertine 
D)  magma 
E)  lahar 
A)  geyser 
B)  mud volcano 
C)  travertine 
D)  magma 
E)  lahar

Question 5

When water is pumped out of an unconfined aquifer through a well, a ___ often develops in the water table.

Accepted Answer

A)  cone of depression 
B)  thin film of pollution 
C)  ground-water mound 
D)  piercement structure 
E)  deflation structure 
A)  cone of depression 
B)  thin film of pollution 
C)  ground-water mound 
D)  piercement structure 
E)  deflation structure

Question 6

Compared to the flow of water in streams, most ground water moves relatively slowly.

Accepted Answer

A) True 
 B)False

Question 7

______ streams receive water from the saturated zone.

Accepted Answer

A)  Spring loaded 
B)  Losing or influent 
C)  Gaining or effluent 
D)  Ephemeral 
E)  Persistent 
A)  Spring loaded 
B)  Losing or influent 
C)  Gaining or effluent 
D)  Ephemeral 
E)  Persistent

Question 8

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 9

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

Accepted Answer

A) True 
 B)False

Question 10

_____ form when slightly acidic ground water dissolves limestone along joints and bedding planes.

Accepted Answer

A)  Pores 
B)  Caves 
C)  Flowstones 
D)  Concretions 
E)  Stalagmites 
A)  Pores 
B)  Caves 
C)  Flowstones 
D)  Concretions 
E)  Stalagmites

Question 11

Most caves are probably 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 12

A(n) _______ is a body of saturated rock or sediment through which water can move easily.

Accepted Answer

A)  sediment 
B)  evaporite 
C)  caprock 
D)  aquifer 
E)  aquiclude 
A)  sediment 
B)  evaporite 
C)  caprock 
D)  aquifer 
E)  aquiclude

Question 13

The upper surface of the saturated zone is called the __.

Accepted Answer

A)  water table 
B)  hard pan 
C)  saturated lid 
D)  recharge zone 
E)  head level 
A)  water table 
B)  hard pan 
C)  saturated lid 
D)  recharge zone 
E)  head level

Question 14

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 15

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

Accepted Answer

A) True 
 B)False

Question 16

____ water is water that contains relatively large amounts of dissolved calcium and magnesium.

Accepted Answer

A)  Hard 
B)  Branch 
C)  Mineral 
D)  Soda 
E)  Soft 
A)  Hard 
B)  Branch 
C)  Mineral 
D)  Soda 
E)  Soft

Question 17

____ 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 18

A(n) ____ is a body of ground water separated from the main water table by a zone that is not saturated.

Accepted Answer

A)  confined aquifer 
B)  perched water table 
C)  aquiclude 
D)  free aquifer 
E)  vadose zone 
A)  confined aquifer 
B)  perched water table 
C)  aquiclude 
D)  free aquifer 
E)  vadose zone

Question 19

___ 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 20

Given all other conditions are the same, ground water flows faster if __.

Accepted Answer

A)  it is flowing through finer-grained materials 
B)  it is flowing in response to a greater hydraulic gradient 
C)  it is flowing through deeply buried material 
D)  it is colder 
E)  it is saturated with dissolved solids 
A)  it is flowing through finer-grained materials 
B)  it is flowing in response to a greater hydraulic gradient 
C)  it is flowing through deeply buried material 
D)  it is colder 
E)  it is saturated with dissolved solids

Exam 11: Ground Water

The saturated zone overlies the water table.

The amount of ground water is ____ that of all rivers and lakes combined.

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

A _______ is a type of hot spring that erupts hot water and steam.

When water is pumped out of an unconfined aquifer through a well, a ___ often develops in the water table.

Compared to the flow of water in streams, most ground water moves relatively slowly.

______ streams receive water from the saturated zone.

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

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

_____ form when slightly acidic ground water dissolves limestone along joints and bedding planes.

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

A(n) _______ is a body of saturated rock or sediment through which water can move easily.

The upper surface of the saturated zone is called the __.

Shales can have substantial porosity but have low _____.

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

____ water is water that contains relatively large amounts of dissolved calcium and magnesium.

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

A(n) ____ is a body of ground water separated from the main water table by a zone that is not saturated.

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

Given all other conditions are the same, ground water flows faster if __.

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