Question 1

Which of the following will lead to the development of stream terraces?

Accepted Answer

A)   tectonic uplift which steepens channels
B)   decreased sediment yield into the stream
C)   a drop in base level on tributaries of a larger stream
D)   all of the aboveE) C) and D)
F) A) and C)

Question 2

The difference between an incised delta and a fill terrace is:

Accepted Answer

A)   In a fill terrace, incision into the floodplain occurs first, followed by aggrading and filling of the valley
B)   Incised terraces form when a stream cuts through and leaves parts of its former floodplain as benches above the modern floodplain
C)   Incised terraces aggrade and fills its valleys with alluvium and then incises into the valley
D)   Fill terraces form when a stream cuts through and leaves parts of its former floodplain as benches above the modern floodplainE) A) and C)
F) All of the above B

Question 3

Which process influences the shape or form of a delta?

Accepted Answer

A)   waves
B)   tides
C)   currents
D)   all of theseE) None of the above
F) A) and B)

Question 4

The shape of the alluvial fan most closely resembles:

Accepted Answer

A)   a circular mound
B)   a long ridge
C)   an apron
D)   a long channel
E)   none of theseF) C) and E)
G) D) and E) C

Question 5

How do braided streams form?

Accepted Answer

A)   Rivers meet from different directions, causing streams to crisscross
B)   Varying speeds of water flow produces multiple braids of differing velocities
C)   Periodic flooding causes receding water to form into multiple braids
D)   Formation of midstream bars diverts the flow of water around its barE) A) and D)
F) A) and C)

Question 6

Ephemeral streams flow year round.

Accepted Answer

A) True 
 B)False

Question 7

Channels on alluvial fans never change courses.

Accepted Answer

A) True 
 B)False

Question 8

When alluvial fans coalesce along a mountain front obscuring the cone shape, a(n)  _____ forms.

Accepted Answer

A)   bajada or alluvial apron
B)   alluvial skirt
C)   alluvial flow
D)   convex hill sleeveE) A) and B)
F) None of the above A

Question 9

Flood deposits made up of the coarsest material forms a(n)  ___along the flooded river.

Accepted Answer

A)   oxbow ridge
B)   bluff
C)   levee
D)   sand barE) B) and C)
F) All of the above

Question 10

What kind of lake forms when a meander is cut off?

Accepted Answer

A)   meander lake
B)   kettle lake
C)   oxbow lake
D)   cut-off lakeE) A) and B)
F) A) and C)

Question 11

Floodplains form when:

Accepted Answer

A)   sediment is eroded from the bluffs and deposited on the margins of the river
B)   point bars merge
C)   the river floods and deposits sediment on its margins
D)   the water dries and sediment is deposited in the channelE) B) and C)
F) A) and D)

Question 12

The shape or form of the delta is not influenced by stream discharge.

Accepted Answer

A) True 
 B)False

Question 13

In meandering rivers, erosion occurs:

Accepted Answer

A)   on the point bar
B)   on the outer parts of the bend
C)   in the oxbow lake
D)   all of theseE) A) and B)
F) All of the above

Question 14

What are some of the reasons humans build on floodplains?

Accepted Answer

A)   fertile soils
B)   flat land
C)   access to nearby water
D)   all of the aboveE) A) and B)
F) All of the above

Question 15

The coarsest sediment deposited on an alluvial fan is found:

Accepted Answer

A)   near the margins of the fan
B)   in between the margins and the apex of the fan
C)   at the apex of the fan
D)   None of the above. Uniform sediment size is found throughoutE) A) and B)
F) C) and D)

Question 16

The following statement best describes the formation of natural levees.

Accepted Answer

A)   During large floods, water covers much of the floodplain. As water spills out of the channel, coarse deposits are deposited closest to the channel banks
B)   Biological organisms, such as beavers, build out sediments for hunting, storing, and nesting.
C)   The outer parts of meandering streams leave deposits along the banks as they whip around the bend.
D)   All levees are man made.E) A) and B)
F) None of the above

Question 17

The geographic location displaying a classic triangular-shaped delta is:

Accepted Answer

A)   Mississippi River
B)   Nile Delta
C)   Niger Delta
D)   Strath DeltaE) A) and B)
F) A) and C)

Question 18

Deltas commonly form where streams empty into larger bodies of water such as lakes and oceans.

Accepted Answer

A) True 
 B)False

Question 19

Where on a meander is erosion the greatest?

Accepted Answer

A)   on the inside
B)   on the outside
C)   on the upstream side
D)   on the downstream sideE) None of the above
F) A) and B)

Exam 41: Landforms of the Fluvial System

Which of the following will lead to the development of stream terraces?

Correct Answer
verified

The difference between an incised delta and a fill terrace is:

Correct Answer
verified
B

Which process influences the shape or form of a delta?

Correct Answer
verified

The shape of the alluvial fan most closely resembles:

Correct Answer
verified
C

How do braided streams form?

Correct Answer
verified

Ephemeral streams flow year round.

Correct Answer
verified

Channels on alluvial fans never change courses.

Correct Answer
verified

When alluvial fans coalesce along a mountain front obscuring the cone shape, a(n) _____ forms.

Correct Answer
verified
A

Flood deposits made up of the coarsest material forms a(n) ___along the flooded river.

Correct Answer
verified

What kind of lake forms when a meander is cut off?

Correct Answer
verified

Floodplains form when:

Correct Answer
verified

The shape or form of the delta is not influenced by stream discharge.

Correct Answer
verified

In meandering rivers, erosion occurs:

Correct Answer
verified

What are some of the reasons humans build on floodplains?

Correct Answer
verified

The coarsest sediment deposited on an alluvial fan is found:

Correct Answer
verified

The following statement best describes the formation of natural levees.

Correct Answer
verified

The geographic location displaying a classic triangular-shaped delta is:

Correct Answer
verified

Deltas commonly form where streams empty into larger bodies of water such as lakes and oceans.

Correct Answer
verified

Where on a meander is erosion the greatest?

Correct Answer
verified

Exam 41: Landforms of the Fluvial System

Which of the following will lead to the development of stream terraces?

Correct AnswerverifiedShow Answer

The difference between an incised delta and a fill terrace is:

Correct AnswerverifiedB

Which process influences the shape or form of a delta?

Correct AnswerverifiedShow Answer

The shape of the alluvial fan most closely resembles:

Correct AnswerverifiedC

How do braided streams form?

Correct AnswerverifiedShow Answer

Ephemeral streams flow year round.

Correct AnswerverifiedShow Answer

Channels on alluvial fans never change courses.

Correct AnswerverifiedShow Answer

When alluvial fans coalesce along a mountain front obscuring the cone shape, a(n) _____ forms.

Correct AnswerverifiedA

Flood deposits made up of the coarsest material forms a(n) ___along the flooded river.

Correct AnswerverifiedShow Answer

What kind of lake forms when a meander is cut off?

Correct AnswerverifiedShow Answer

Floodplains form when:

Correct AnswerverifiedShow Answer

The shape or form of the delta is not influenced by stream discharge.

Correct AnswerverifiedShow Answer

In meandering rivers, erosion occurs:

Correct AnswerverifiedShow Answer

What are some of the reasons humans build on floodplains?

Correct AnswerverifiedShow Answer

The coarsest sediment deposited on an alluvial fan is found:

Correct AnswerverifiedShow Answer

The following statement best describes the formation of natural levees.

Correct AnswerverifiedShow Answer

The geographic location displaying a classic triangular-shaped delta is:

Correct AnswerverifiedShow Answer

Deltas commonly form where streams empty into larger bodies of water such as lakes and oceans.

Correct AnswerverifiedShow Answer

Where on a meander is erosion the greatest?

Correct AnswerverifiedShow Answer

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B

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C

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A

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