Question 1

A central peak,such as a volcanic mountain,generally produces which drainage pattern?

Accepted Answer

A)  Radial.
B)  Trellis.
C)  Parallel.
D)  Annular.E) B) and C)
F) A) and B)

Question 2

A flood plain is best described by which of the following?

Accepted Answer

A)  It is an erosional feature located within a depositional feature.
B)  Floodplains are not associated with deposition.
C)  It is generally filled with layers of alluvium.
D)  Despite the name,they are rarely subjected to flooding.E) B) and C)
F) B) and D)

Question 3

Which is a stream that downcuts at the same rate as tectonic uplift,thereby maintaining its course?

Accepted Answer

A)  Meandering stream.
B)  Anabranching river.
C)  Antecedent stream.
D)  Rejuvenated river.E) All of the above
F) C) and D)

Question 4

John Wesley Powell put forward the idea of base level.To which does this refer?

Accepted Answer

A)  The amount of discharge in a particular reach of a stream.
B)  A level below which a stream cannot erode its valley.
C)  An evolutionary cycle of landscape development from fluvial action.
D)  The average height of a stream channel.E) A) and B)
F) A) and C)

Question 5

Which of the following best describes the relationship of deforestation to sediment load?

Accepted Answer

A)  Trees provide dissolved sediments to the stream; as trees are removed,the dissolved loads are diminished.
B)  Trees roots help "anchor" soil; as the trees are removed,the soil more readily erodes into the river channels.
C)  Forestry waste is often dumped in streams,contributing to the suspended loads.
D)  The loss of trees along banks of streams increases stream velocity.E) A) and B)
F) None of the above

Question 6

Which is the process whereby streams deepen their channel?

Accepted Answer

A)  Headwater erosion.
B)  Channel incision.
C)  Stream piracy.
D)  Saltation.E) A) and C)
F) A) and B)

Question 7

What is the drainage density of a 100 km2 drainage basin with 25 km of stream,running through three rivers?

Accepted Answer

A)  3) 
B)  33.333.
C)  4 km • km-2.
D)  0) 25 km • km-2.E) A) and B)
F) None of the above

Question 8

Which of the following best describes floodplains?

Accepted Answer

A)  They rarely occur in a fluvial landscape created by an "old" river.
B)  They are erosional landforms.
C)  They often evolve after a stream has ceased downcutting at a significant rate.
D)  They are the areas of a stream where terraces are present.E) A) and B)
F) A) and C)

Question 9

Structural domes with concentric patterns of rock strata guide stream courses to form which drainage pattern?

Accepted Answer

A)  Radial.
B)  Parallel.
C)  Annular.
D)  Dendritic.E) None of the above
F) A) and B)

Question 10

When a river reaches a base level,its forward velocity rapidly decelerates as it enters a larger body of standing water.Which feature is formed?

Accepted Answer

A)  An estuary.
B)  An alluvial terrace.
C)  A delta.
D)  A stream terrace.E) A) and D)
F) C) and D)

Question 11

If the load exceeds a stream's capacity,sediment accumulates in the bed? Which is this process?

Accepted Answer

A)  Downcutting.
B)  Degradation.
C)  Aggradation.
D)  Saltation.E) None of the above
F) A) and D)

Question 12

Physical weathering is the main process that contributes to the dissolved load of streams.

Accepted Answer

A) True 
 B)False

Question 13

Which is the general term for unconsolidated clay,silt,sand,gravel,and mineral fragments deposited by running water?

Accepted Answer

A)  Alluvium.
B)  Deposition.
C)  Aggradation.
D)  Degradation.E) B) and D)
F) None of the above

Exam 15: River Systems

When a river reaches a base level,its forward velocity rapidly decelerates as it enters a larger body of standing water.Which feature is formed?

Correct Answer
verified

Structural domes with concentric patterns of rock strata guide stream courses to form which drainage pattern?

Correct Answer
verified

Which is the process whereby streams deepen their channel?

Correct Answer
verified

Which is a stream that downcuts at the same rate as tectonic uplift,thereby maintaining its course?

Correct Answer
verified

A central peak,such as a volcanic mountain,generally produces which drainage pattern?

Correct Answer
verified

Physical weathering is the main process that contributes to the dissolved load of streams.

Correct Answer
verified

Which of the following best describes the relationship of deforestation to sediment load?

Correct Answer
verified

John Wesley Powell put forward the idea of base level.To which does this refer?

Correct Answer
verified

If the load exceeds a stream's capacity,sediment accumulates in the bed? Which is this process?

Correct Answer
verified

Which is the general term for unconsolidated clay,silt,sand,gravel,and mineral fragments deposited by running water?

Correct Answer
verified

A flood plain is best described by which of the following?

Correct Answer
verified

What is the drainage density of a 100 km2 drainage basin with 25 km of stream,running through three rivers?

Correct Answer
verified

Which of the following best describes floodplains?

Correct Answer
verified

Exam 15: River Systems

When a river reaches a base level,its forward velocity rapidly decelerates as it enters a larger body of standing water.Which feature is formed?

Correct AnswerverifiedShow Answer

Structural domes with concentric patterns of rock strata guide stream courses to form which drainage pattern?

Correct AnswerverifiedShow Answer

Which is the process whereby streams deepen their channel?

Correct AnswerverifiedShow Answer

Which is a stream that downcuts at the same rate as tectonic uplift,thereby maintaining its course?

Correct AnswerverifiedShow Answer

A central peak,such as a volcanic mountain,generally produces which drainage pattern?

Correct AnswerverifiedShow Answer

Physical weathering is the main process that contributes to the dissolved load of streams.

Correct AnswerverifiedShow Answer

Which of the following best describes the relationship of deforestation to sediment load?

Correct AnswerverifiedShow Answer

John Wesley Powell put forward the idea of base level.To which does this refer?

Correct AnswerverifiedShow Answer

If the load exceeds a stream's capacity,sediment accumulates in the bed? Which is this process?

Correct AnswerverifiedShow Answer

Which is the general term for unconsolidated clay,silt,sand,gravel,and mineral fragments deposited by running water?

Correct AnswerverifiedShow Answer

A flood plain is best described by which of the following?

Correct AnswerverifiedShow Answer

What is the drainage density of a 100 km2 drainage basin with 25 km of stream,running through three rivers?

Correct AnswerverifiedShow Answer

Which of the following best describes floodplains?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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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
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