Question 1

Which statement about average stream velocity is true?

Accepted Answer

A)  Velocity is higher in the upper reaches where gradients are steeper.
B)  Velocity is constant along the river's course.
C)  Velocity decreases downstream because the gradient is less steep.
D)  Velocity increases in the downstream direction.
E)  Velocity decreases downstream because of frictional forces.F) A) and E)
G) C) and D)

Question 2

The outer bank of a meandering river is called a ____ and is where ____ occurs..

Accepted Answer

A)  point bar; deposition
B)  point bar; erosion
C)  cut bank; deposition
D)  cut bank; erosion
E)  cut bar; erosion and depositionF) B) and D)
G) A) and B)

Question 3

Streams with broad, shallow channels and narrow, deep channels have a higher flow velocity than do those with semi-circular channels.

Accepted Answer

A) True 
 B)False

Question 4

A delta that has islands reworked by waves on the seaward side, such as the Nile delta, is typically formed as a(n) ____-dominated delta.

Accepted Answer

A)  avian
B)  stream
C)  wave
D)  tide
E)  sedimentF) B) and C)
G) A) and B)

Question 5

Braided streams develop when ____.

Accepted Answer

A)  topography restricts flow to a narrow channel
B)  rainfall is regular and frequent
C)  meanders are cut off
D)  abrasive action exceeds hydraulic action
E)  the stream is supplied with excessive sedimentF) All of the above
G) A) and E)

Question 6

Wind gaps are created when superposed streams eroded downward into resistant rocks to create a narrow canyon.

Accepted Answer

A) True 
 B)False

Question 7

A delta with long, fingerlike sand bodies, each deposited in a distributary channel that progrades far seaward, such as the Mississippi River, is typically formed as a(n) ____-dominated delta.

Accepted Answer

A)  avian
B)  stream
C)  wave
D)  tide
E)  sedimentF) C) and E)
G) A) and C)

Question 8

The total surface region that provides runoff to a stream system is known as a(n)____________________.

Accepted Answer

The answer of The total surface region that provides runoff...

Question 9

The gradient of streams tends to be ____________________ in their upper reaches and ____________________ in their lower reaches.

Accepted Answer

The answer of The gradient of streams tends to be...

Question 10

Streamflow is fastest ____.

Accepted Answer

A)  at the bottom of the channel
B)  at the surface of the water
C)  along the sides of the channel
D)  at the center of the channel, just below the surface
E)  at the center of the channel, at the surfaceF) A) and C)
G) A) and D)

Question 11

The suspended load consists of ____.

Accepted Answer

A)  sand
B)  gravel
C)  clays
D)  dissolved ions
E)  pebblesF) C) and E)
G) C) and D)

Question 12

The drainage pattern in a basin is affected in large part by ____.

Accepted Answer

A)  the type of river
B)  the underlying geology
C)  local topography
D)  base level
E)  erosionF) B) and D)
G) A) and E)

Question 13

An uplifted erosional remnant of a floodplain that formed when a stream was flowing at a higher level is called a(n)____________________.

Accepted Answer

The answer of An uplifted erosional remnant of a floodplain...

Question 14

Flow in which there is no mixing between parallel layers in the water is known as ____.

Accepted Answer

A)  turbulent flow
B)  outflow
C)  intermittent flow
D)  laminar flow
E)  stream flowF) D) and E)
G) A) and E)

Question 15

Streams do most of their erosion, transportation of sediment, and deposition of sediment during ____.

Accepted Answer

A)  day-to-day flow movement
B)  icy winters
C)  flooding
D)  rainstorms
E)  wind stormsF) A) and B)
G) C) and D)

Question 16

Former meanders that have been cut off from the stream are called ____________________.

Accepted Answer

The answer of Former meanders that have been cut off...

Question 17

Ridges of alluvium left along a stream's margins by repeated deposition during floods are called ____________________.

Accepted Answer

The answer of Ridges of alluvium left along a stream's...

Question 18

The amount of water that passes a particular point in a river over a given time period is called the ____.

Accepted Answer

A)  velocity
B)  channel flow
C)  discharge
D)  channel capacity
E)  channel loadF) A) and C)
G) D) and E)

Question 19

Stream gradient is constant along the course of a river.

Accepted Answer

A) True 
 B)False

Question 20

The slope of a river is called the ____.

Accepted Answer

A)  hill
B)  radiant
C)  headwaters
D)  gradient
E)  base levelF) B) and E)
G) A) and E)

Exam 12: Running Water--Streams and Rivers

Flow in which there is no mixing between parallel layers in the water is known as ____.

Correct AnswerverifiedShow Answer

Ridges of alluvium left along a stream's margins by repeated deposition during floods are called ____________________.

Correct AnswerverifiedShow Answer

Stream gradient is constant along the course of a river.

Correct AnswerverifiedShow Answer

An uplifted erosional remnant of a floodplain that formed when a stream was flowing at a higher level is called a(n)____________________.

Correct AnswerverifiedShow Answer

Former meanders that have been cut off from the stream are called ____________________.

Correct AnswerverifiedShow Answer

Which statement about average stream velocity is true?

Correct AnswerverifiedShow Answer

The amount of water that passes a particular point in a river over a given time period is called the ____.

Correct AnswerverifiedShow Answer

A delta with long, fingerlike sand bodies, each deposited in a distributary channel that progrades far seaward, such as the Mississippi River, is typically formed as a(n) ____-dominated delta.

Correct AnswerverifiedShow Answer

The slope of a river is called the ____.

Correct AnswerverifiedShow Answer

The drainage pattern in a basin is affected in large part by ____.

Correct AnswerverifiedShow Answer

Streams do most of their erosion, transportation of sediment, and deposition of sediment during ____.

Correct AnswerverifiedShow Answer

Streams with broad, shallow channels and narrow, deep channels have a higher flow velocity than do those with semi-circular channels.

Correct AnswerverifiedShow Answer

A delta that has islands reworked by waves on the seaward side, such as the Nile delta, is typically formed as a(n) ____-dominated delta.

Correct AnswerverifiedShow Answer

Braided streams develop when ____.

Correct AnswerverifiedShow Answer

The gradient of streams tends to be ____________________ in their upper reaches and ____________________ in their lower reaches.

Correct AnswerverifiedShow Answer

The total surface region that provides runoff to a stream system is known as a(n)____________________.

Correct AnswerverifiedShow Answer

Wind gaps are created when superposed streams eroded downward into resistant rocks to create a narrow canyon.

Correct AnswerverifiedShow Answer

The outer bank of a meandering river is called a ____ and is where ____ occurs..

Correct AnswerverifiedShow Answer

The suspended load consists of ____.

Correct AnswerverifiedShow Answer

Streamflow is fastest ____.

Correct AnswerverifiedShow Answer

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The gradient of streams tends to be in their upper reaches and in their lower reaches.

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The outer bank of a meandering river is called a and is where occurs..

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