Question 1

What is a possible way to decrease permeability?

Accepted Answer

A)   fracture a rock
B)   compact sediment
C)   have groundwater dissolve cement between the grains
D)   all of these
E)   none of theseF) C) and D)
G) All of the above

Question 2

Which of the following is NOT true about the unsaturated zone?

Accepted Answer

A)   pore spaces in the unsaturated zone contain air with no water
B)   it overlies the water table
C)   it overlies the saturated zone
D)   there is an unsaturated zone below some riversE) B) and C)
F) All of the above

Question 3

Which of the following is the best indication that limestone caves could be present at depth?

Accepted Answer

A)   springs
B)   cliffs and overhangs along rivers
C)   large quartz crystals laying on the surface
D)   gently sloping hills
E)   limestone pillars and sinkholesF) A) and D)
G) B) and E)

Question 4

Groundwater velocity the rate of movement of ground water)  is most strongly influenced by which of the following factors?

Accepted Answer

A)   local climate and humidity
B)   depth to the water table
C)   presence of wells
D)   the slope gradient)  of the water tableE) All of the above
F) C) and D)

Question 5

What is the nature of the water table?

Accepted Answer

A)   it is the boundary between the saturated zone and unsaturated zone
B)   below the water table, water fills pore spaces and can flow
C)   infiltrating water generally passes through the water table to become groundwater
D)   all of these
E)   a and b onlyF) A) and D)
G) A) and E)

Question 6

Which of the following is a valid statement with relevance to groundwater?

Accepted Answer

A)   in most sediments, adjacent grains fit tightly together
B)   fractures are the main way groundwater moves through some rocks, such as granite
C)   most groundwater occurs in underground lakes
D)   most groundwater occurs in underground rivers
E)   all of theseF) All of the above
G) D) and E)

Question 7

Sediments in and below a dewatered area of an aquifer become compacted because:

Accepted Answer

A)   water pressure drops and the pore spaces are closed
B)   water pressure increases and the pore spaces become too porous
C)   water pressure remains the same but the pore spaces become clogged with new sedimentsD) A) and B)
E) A) and C)

Question 8

Which of these four numbered features on the surface or in a cave is a stalagmite?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   none of theseF) A) and C)
G) A) and E)

Question 9

Of the following, which has the greatest total volume of water?

Accepted Answer

A)   the atmosphere
B)   groundwater
C)   ice caps and glaciers
D)   rivers and lakesE) B) and D)
F) B) and C)

Question 10

Most groundwater pumped in the United States is used for:

Accepted Answer

A)   industry
B)   irrigation
C)   drinking water
D)   swimming poolsE) B) and C)
F) A) and D)

Question 11

Which of the following is true about how a lake can relate to the water table?

Accepted Answer

A)   A lake that is above the water table may lose water to groundwater.
B)   The water table intersects, or is higher than, the surface in many lakes.
C)   A lake can gain water if it is lower than the water table in areas adjacent to the lake.
D)   All of these.E) C) and D)
F) A) and C)

Question 12

In which of these four lakes is the water table above the land surface?

Accepted Answer

A)   1 and 2
B)   2 and 3
C)   3 and 4
D)   1 and 4
E)   none of theseF) A) and D)
G) A) and B)

Question 13

How are springs affected by faulting?

Accepted Answer

A)   Faults provide a permeable pathway for groundwater movement to the surface.
B)   Faults stop the flow of groundwater to the surface, as they usually form an impermeable layer.
C)   Faults and springs are rarely found in the same geologic location.D) A) and B)
E) B) and C)

Question 14

The area of subsurface where the pore spaces are filled with water is called the

Accepted Answer

A)   unsaturated zone
B)   saturated zone
C)   water tableD) B) and C)
E) A) and C)

Question 15

Where is most of Earth's freshwater?

Accepted Answer

A)   ice caps, glaciers, and groundwater
B)   groundwater and rivers
C)   lakes and swamps
D)   rivers and streams
E)   oceansF) B) and D)
G) D) and E)

Question 16

Which of the following materials probably has the lowest porosity?

Accepted Answer

A)   well sorted, fine-grained sediment
B)   well sorted, coarse-grained sediment
C)   unfractured granite
D)   sand with well-rounded grainsE) B) and D)
F) C) and D)

Question 17

When contamination enters groundwater, it moves along with the direction of the groundwater. The contamination takes on a particular shape called a:

Accepted Answer

A)   plume
B)   cone of contamination
C)   horizontal fissureD) A) and B)
E) None of the above

Question 18

In the United States, which of the following uses the most water?

Accepted Answer

A)   Irrigation
B)   Public and domestic use
C)   Mining
D)   LivestockE) None of the above
F) A) and C)

Question 19

The permeability of a rock layer on which perched water sits is:

Accepted Answer

A)   very low
B)   very high
C)   equal to the hydraulic gradientD) A) and B)
E) A) and C)

Question 20

Which of the following is the leading cause of disease in Bangladesh?

Accepted Answer

A)   water contamination
B)   saltwater intrusion
C)   dewatered aquifers
D)   the depth of the water tableE) A) and C)
F) A) and B)

Exam 17: Water Resources

Which of the following is the leading cause of disease in Bangladesh?

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Of the following, which has the greatest total volume of water?

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Most groundwater pumped in the United States is used for:

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What is a possible way to decrease permeability?

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How are springs affected by faulting?

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Sediments in and below a dewatered area of an aquifer become compacted because:

Correct AnswerverifiedShow Answer

Which of the following is a valid statement with relevance to groundwater?

Correct AnswerverifiedShow Answer

When contamination enters groundwater, it moves along with the direction of the groundwater. The contamination takes on a particular shape called a:

Correct AnswerverifiedShow Answer

Where is most of Earth's freshwater?

Correct AnswerverifiedShow Answer

The area of subsurface where the pore spaces are filled with water is called the

Correct AnswerverifiedShow Answer

Which of the following is NOT true about the unsaturated zone?

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In the United States, which of the following uses the most water?

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Which of the following is the best indication that limestone caves could be present at depth?

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What is the nature of the water table?

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Which of the following is true about how a lake can relate to the water table?

Correct AnswerverifiedShow Answer

Groundwater velocity the rate of movement of ground water) is most strongly influenced by which of the following factors?

Correct AnswerverifiedShow Answer

Which of these four numbered features on the surface or in a cave is a stalagmite?

Correct AnswerverifiedShow Answer

The permeability of a rock layer on which perched water sits is:

Correct AnswerverifiedShow Answer

In which of these four lakes is the water table above the land surface?

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Which of the following materials probably has the lowest porosity?

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