Question 1

What does it mean if the water table of a potential spring does NOT reach above the ground surface?

Accepted Answer

A)  The aquifer does not have any recharge into it and thus is dry.
B)  There will never be any artesian wells or springs associated with the aquifer.
C)  It will not be possible to pull water out of the aquifer from any type of well.
D)  The aquifer does not have a high enough permeability to produce water.

Question 2

If a large airport, complete with paved runways, parking lots, and many new structures, is built next to a river, what might the effect be?

Accepted Answer

A)  The fish population will decrease.
B)  The nutrient supply for fish will be diminished.
C)  There will be an increased likelihood of flooding.
D)   Overuse of water will dry out the river. C

Question 3

During a particularly cold winter in Florida, the temperatures remained below freezing for several weeks. To avoid freeze damage to the crops, farmers used well water to continuously spray the crops and maintain a protective coating of ice around the crops. Shortly after this long cold snap, sinkholes began forming throughout the region. Were these events linked?

Accepted Answer

A)  No; watering crops does not cause the formation of sinkholes.
B)  No; sinkholes form in a karst landscape, on which farmers cannot farm.
C)  Yes; the farmers removed too much water from the aquifers and induced subsidence.
D)  Yes; the farmers added too much weight to the surface and induced subsidence. C

Question 4

Lakes are bodies of standing water, but not all lakes contain freshwater. Why are some lakes fated to become salt lakes?

Accepted Answer

A)  They have only inlets but no outlets.
B)  They have both an inlet and outlet.
C)  They have neither an inlet nor an outlet.
D)  There are no salt lakes.

Question 5

A relatively 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

Question 6

The base level of a tributary would become ___________ if a dam and a reservoir were constructed where it flowed into a trunk stream.

Accepted Answer

A)  lower
B)  slower
C)  faster
D)  higher D

Question 7

Ephemeral streams, as opposed to permanent streams,

Accepted Answer

A)  are subject to erosion of sediment.
B)  contain water only during rainfall.
C)  can be fed by large drainage basins.
D)  occur only in tropical regions.

Question 8

Topography dominated by depressions formed by the collapse of caves is termed a

Accepted Answer

A)  valley and ridge province.
B)  karst landscape.
C)  horst and graben landscape.
D)  speleothem formation.

Question 9

What physical property of the underlying rock would lead to the formation of a cliff over which a waterfall may form?

Accepted Answer

A)  a high resistance to erosion
B)  high porosity
C)  large permeability
D)  very fine grain sizes

Question 10

If a dam is built on a river, what effects might be felt downstream?

Accepted Answer

A)  increase in the fish population
B)  decrease in sediment supply
C)  increase in the sediment load
D)  increase in flood potential

Question 11

Ephemeral streams

Accepted Answer

A)  consist of a series of intertwined channels that are overloaded with sediment.
B)  have flowing water either episodically or during only a portion of the year.
C)  have a channel that is highly sinuous (curvy) .
D)  are those that divert flow from streams they have intersected through stream erosion.

Question 12

How do geologists distinguish between a natural lake and a reservoir?

Accepted Answer

A)  Reservoirs can become a natural lake over time.
B)  Natural lakes can provide areas on recreational activities but a reservoir cannot.
C)  Natural lakes are where Earth's surface is relatively higher and can provide surface runoff.
D)  Reservoirs are lakes that have been trapped by the construction of a dam or retaining wall.

Question 13

In uniform sediments with a relatively constant and gentle slope at the surface, a ___________ drainage network is expected.

Accepted Answer

A)  dendritic
B)  radial
C)  rectangular
D)  trellis

Question 14

A flowing artesian well is one that

Accepted Answer

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

Question 15

What are porosity and permeability, and how do they affect the rate of groundwater flow?

Accepted Answer

Porosity refers to the pore spaces withi...

Question 16

Hot groundwater is mineralized because

Accepted Answer

A)  minerals cannot precipitate in hot water.
B)  the hot water dissolves minerals.
C)  cold water cannot dissolve minerals.
D)  it runs through layers containing salts.

Question 17

What is a stream? How is it similar to and different from a river or a creek?

Accepted Answer

A stream is a body of water th...

Question 18

Building dams on rivers traps sediment behind the dams. This sediment would normally have traveled all the way down the river and out into the ocean. How might this sediment starvation affect the coastal beaches?

Accepted Answer

Beach sand along rivers is con...

Question 19

Lakes can form

Accepted Answer

A)  when soil becomes supersaturated.
B)  during hurricane activity.
C)  because of a collapsed volcanic caldera or subsidence caused by rifting.
D)  as a result of the deposition of valley walls or subsidence caused by convergence.

Question 20

Recharge areas for artesian wells and springs are generally in the

Accepted Answer

A)  desert.
B)  mountains.
C)  ocean.
D)  flatlands.

Exam 13: Freshwater: Streams, Lakes, and Groundwater

What does it mean if the water table of a potential spring does NOT reach above the ground surface?

Correct Answer
verified

If a large airport, complete with paved runways, parking lots, and many new structures, is built next to a river, what might the effect be?

Correct Answer
verified
C

Correct Answer
verified
C

Lakes are bodies of standing water, but not all lakes contain freshwater. Why are some lakes fated to become salt lakes?

Correct Answer
verified

A relatively impermeable layer of rock or sediment is termed a(n) ___________ in hydrogeologic contexts.

Correct Answer
verified

The base level of a tributary would become ___________ if a dam and a reservoir were constructed where it flowed into a trunk stream.

Correct Answer
verified
D

Ephemeral streams, as opposed to permanent streams,

Correct Answer
verified

Topography dominated by depressions formed by the collapse of caves is termed a

Correct Answer
verified

What physical property of the underlying rock would lead to the formation of a cliff over which a waterfall may form?

Correct Answer
verified

If a dam is built on a river, what effects might be felt downstream?

Correct Answer
verified

Ephemeral streams

Correct Answer
verified

How do geologists distinguish between a natural lake and a reservoir?

Correct Answer
verified

In uniform sediments with a relatively constant and gentle slope at the surface, a ___________ drainage network is expected.

Correct Answer
verified

A flowing artesian well is one that

Correct Answer
verified

What are porosity and permeability, and how do they affect the rate of groundwater flow?

Correct Answer
verified
Porosity refers to the pore spaces withi...
View Answer

Hot groundwater is mineralized because

Correct Answer
verified

What is a stream? How is it similar to and different from a river or a creek?

Correct Answer
verified
A stream is a body of water th...
View Answer

Building dams on rivers traps sediment behind the dams. This sediment would normally have traveled all the way down the river and out into the ocean. How might this sediment starvation affect the coastal beaches?

Correct Answer
verified
Beach sand along rivers is con...
View Answer

Lakes can form

Correct Answer
verified

Recharge areas for artesian wells and springs are generally in the

Correct Answer
verified

Exam 13: Freshwater: Streams, Lakes, and Groundwater

What does it mean if the water table of a potential spring does NOT reach above the ground surface?

Correct AnswerverifiedShow Answer

If a large airport, complete with paved runways, parking lots, and many new structures, is built next to a river, what might the effect be?

Correct AnswerverifiedC

Correct AnswerverifiedC

Lakes are bodies of standing water, but not all lakes contain freshwater. Why are some lakes fated to become salt lakes?

Correct AnswerverifiedShow Answer

A relatively impermeable layer of rock or sediment is termed a(n) ___________ in hydrogeologic contexts.

Correct AnswerverifiedShow Answer

The base level of a tributary would become ___________ if a dam and a reservoir were constructed where it flowed into a trunk stream.

Correct AnswerverifiedD

Ephemeral streams, as opposed to permanent streams,

Correct AnswerverifiedShow Answer

Topography dominated by depressions formed by the collapse of caves is termed a

Correct AnswerverifiedShow Answer

What physical property of the underlying rock would lead to the formation of a cliff over which a waterfall may form?

Correct AnswerverifiedShow Answer

If a dam is built on a river, what effects might be felt downstream?

Correct AnswerverifiedShow Answer

Ephemeral streams

Correct AnswerverifiedShow Answer

How do geologists distinguish between a natural lake and a reservoir?

Correct AnswerverifiedShow Answer

In uniform sediments with a relatively constant and gentle slope at the surface, a ___________ drainage network is expected.

Correct AnswerverifiedShow Answer

A flowing artesian well is one that

Correct AnswerverifiedShow Answer

What are porosity and permeability, and how do they affect the rate of groundwater flow?

Correct AnswerverifiedPorosity refers to the pore spaces withi...View AnswerShow Answer

Hot groundwater is mineralized because

Correct AnswerverifiedShow Answer

What is a stream? How is it similar to and different from a river or a creek?

Correct AnswerverifiedA stream is a body of water th...View AnswerShow Answer

Building dams on rivers traps sediment behind the dams. This sediment would normally have traveled all the way down the river and out into the ocean. How might this sediment starvation affect the coastal beaches?

Correct AnswerverifiedBeach sand along rivers is con...View AnswerShow Answer

Lakes can form

Correct AnswerverifiedShow Answer

Recharge areas for artesian wells and springs are generally in the

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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C

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C

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D

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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Porosity refers to the pore spaces withi...
View Answer

Correct Answer
verified

Correct Answer
verified
A stream is a body of water th...
View Answer

Correct Answer
verified
Beach sand along rivers is con...
View Answer

Correct Answer
verified

Correct Answer
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