Question 1

As its name implies,the water table is always very level (flat).

Accepted Answer

A) True 
 B)False

Question 2

Which of the following must result in a lower base level for rivers and streams?

Accepted Answer

A)  sea level drops; land subsides
B)  sea level falls; land rises
C)  sea level rises; land subsides
D)  sea level rises; land rises

Question 3

The source of heat for most hot springs is hot igneous material beneath the surface.

Accepted Answer

A) True 
 B)False

Question 4

A meandering river is flowing in a broad,alluvial valley and the river is silt-laden but also moves sand and a small amount of gravel.The government decides to build a dam across the valley for power and flood control.What will happen to the river downstream of the dam?

Accepted Answer

A)  The river will start to deposit sand and gravel,frequently spilling out of its channel.
B)  The river will not change.
C)  The river will respond to the new temporary base level and cut laterally outside its valley,widening the valley.
D)  The trapping of silt in the reservoir will change the river to a braided stream because it will only have sand and gravel in its sediment load.

Question 5

A dendritic (tree-like) drainage pattern develops in regions where the underlying material is relatively uniform so the major control on the water movement is ________.

Accepted Answer

A)  vegetation
B)  slope
C)  saturation
D)  climate
E)  sediment load

Question 6

The suspended load of a stream ________.

Accepted Answer

A)  is deposited before the bed load
B)  is highly soluble substances
C)  moves along the bottom
D)  usually consists of fine particles

Question 7

If two streams are otherwise identical,the stream with the smaller gradient would have the highest velocity flow.

Accepted Answer

A) True 
 B)False

Question 8

The city of New Orleans is in the delta of a great river.During hurricane Katrina most of the city flooded but the area along the river,like the French Quarter,did not.Why didn't these areas flood?

Accepted Answer

A)  The army corps of engineers must have dredged the river and built these areas up before the city was built.
B)  These areas were natural levees of the river,and were higher in elevation than adjacent areas.
C)  The water couldn't flow fast enough to cover these areas and was halted before it could flood these areas.
D)  The river flowed away from these areas into other parts of the city when it broke the levees,and these areas just happened to be spared.

Question 9

Which of the following best describes how geysers erupt?

Accepted Answer

A)  Water suddenly boils in disconnected voids and cracks above the water table,causing the aquifer to explosively fragment.
B)  Water slowly boils in a network of vertical cracks above the water table,sending up a plume of steam and hot water.
C)  Water below the water table slowly boils in a vertical crack or natural conduit,causing a plume of condensed water vapor to rise above the vent.
D)  With a slight reduction in pressure,water in a saturated,natural conduit suddenly boils,sending a plume of steam and hot water into the air above the vent.

Question 10

For a well to be characterized as being artesian,water must flow freely at the surface.

Accepted Answer

A) True 
 B)False

Question 11

The water table is ________.

Accepted Answer

A)  a boundary between unsaturated bedrock and an underground river
B)  a boundary between unsaturated bedrock below and saturated bedrock above
C)  an underground mass of partly saturated rock
D)  a boundary between saturated rock below and unsaturated rock above

Question 12

As stream discharge increases ________.

Accepted Answer

A)  velocity,width,and depth increase
B)  only velocity increases
C)  velocity,width,and depth decrease
D)  only depth increases

Question 13

An alluvial fan ________.

Accepted Answer

A)  is another name for a small delta forming along a beach
B)  a fan-shaped mass of sediment deposited at the base of a mountain front due to an abrupt change in stream gradient
C)  a fan-shaped sediment mass generated by a distributary channel
D)  a plant that grows in deltas and is diagnostic of a delta

Question 14

Which of the following is the correct definition of stream gradient?

Accepted Answer

A)  the distance traveled by water in a channel times a drop in elevation
B)  the drop in elevation of a stream divided by the distance the water travels
C)  the water pressure at the bottom of the stream divided by the stream's width
D)  the increase in discharge of a stream per unit drop in elevation

Question 15

________ is the total quantity of sediment carried by a river.

Accepted Answer

The answer of ________ is the total quantity of sediment...

Question 16

Which of the following features characterize meandering streams and valleys?

Accepted Answer

A)  natural levees; broad floodplains
B)  rapids; channel bed potholes
C)  waterfalls; entrenched meanders
D)  V-shaped valley cross sections

Question 17

People learned by trial and error years ago how to paddle a canoe upstream in meandering rivers,knowing where the strongest currents were located.Assuming you don't want to go backwards,what is the best paddling route to maximize your speed upstream?

Accepted Answer

A)  Keep on the outside bends,near the cut banks,as much as possible.
B)  Stay in midchannel.
C)  Stay on the inside bend of meanders,crossing over whenever the meander turns so you can stay on the inside bend.
D)  Always stay close to one bank or the other,regardless of how the river bends.

Question 18

Water plays an important role in sculpting the landscape of continents because ________.

Accepted Answer

A)  water is a major cause of erosion on land
B)  water contributes to plant and animal life that strongly affects the landscape
C)  water deposits sediments in areas like the Grand Canyon and Yellowstone National Park where they landscape is changing rapidly
D)  water moves through streams that are a major cause of mass wasting
E)  ground water causes sinkholes and domes that change the landscape rapidly

Question 19

Flowing water experiences friction when it flows along the sides and bottom of its channel.

Accepted Answer

A) True 
 B)False

Question 20

A stream flowing into a sinkhole is called a(n)________.

Accepted Answer

The answer of A stream flowing into a sinkhole is...

Exam 5: Running Water and Groundwater

Which of the following best describes how geysers erupt?

Correct AnswerverifiedShow Answer

The source of heat for most hot springs is hot igneous material beneath the surface.

Correct AnswerverifiedShow Answer

If two streams are otherwise identical,the stream with the smaller gradient would have the highest velocity flow.

Correct AnswerverifiedShow Answer

Which of the following must result in a lower base level for rivers and streams?

Correct AnswerverifiedShow Answer

An alluvial fan ________.

Correct AnswerverifiedShow Answer

The suspended load of a stream ________.

Correct AnswerverifiedShow Answer

Water plays an important role in sculpting the landscape of continents because ________.

Correct AnswerverifiedShow Answer

For a well to be characterized as being artesian,water must flow freely at the surface.

Correct AnswerverifiedShow Answer

Flowing water experiences friction when it flows along the sides and bottom of its channel.

Correct AnswerverifiedShow Answer

Which of the following is the correct definition of stream gradient?

Correct AnswerverifiedShow Answer

As its name implies,the water table is always very level (flat).

Correct AnswerverifiedShow Answer

A dendritic (tree-like) drainage pattern develops in regions where the underlying material is relatively uniform so the major control on the water movement is ________.

Correct AnswerverifiedShow Answer

The city of New Orleans is in the delta of a great river.During hurricane Katrina most of the city flooded but the area along the river,like the French Quarter,did not.Why didn't these areas flood?

Correct AnswerverifiedShow Answer

Which of the following features characterize meandering streams and valleys?

Correct AnswerverifiedShow Answer

The water table is ________.

Correct AnswerverifiedShow Answer

People learned by trial and error years ago how to paddle a canoe upstream in meandering rivers,knowing where the strongest currents were located.Assuming you don't want to go backwards,what is the best paddling route to maximize your speed upstream?

Correct AnswerverifiedShow Answer

A stream flowing into a sinkhole is called a(n)________.

Correct AnswerverifiedShow Answer

As stream discharge increases ________.

Correct AnswerverifiedShow Answer

________ is the total quantity of sediment carried by a river.

Correct AnswerverifiedShow Answer

A meandering river is flowing in a broad,alluvial valley and the river is silt-laden but also moves sand and a small amount of gravel.The government decides to build a dam across the valley for power and flood control.What will happen to the river downstream of the dam?

Correct AnswerverifiedShow Answer

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