Question 1

Stream erosion and deposition are controlled primarily by a river's velocity.

Accepted Answer

A) True 
 B)False

Question 2

Drainage basins are bowl-shaped depressions with a lake in the middle,and all streams in the basin discharge their water and sediment into that lake.

Accepted Answer

A) True 
 B)False

Question 3

Paved areas and storm sewers decrease the rate of surface runoff of water.

Accepted Answer

A) True 
 B)False

Question 4

On large alluvial fans,the _____ sediment is deposited near the mountains.

Accepted Answer

A)  finest
B)  clay
C)  coarsest
D)  quartz
E)  best sorted

Question 5

_____ refers to sand grain movement in a series of short leaps or bounces off the bottom.

Accepted Answer

A)  Jumping
B)  Floating
C)  Saltation
D)  Hopping
E)  Vaulting C

Question 6

A stream's discharge is __.

Accepted Answer

A)  the volume of dissolved mineral matter carried by the stream in a unit of time
B)  the volume of solid sediment carried by the stream in a unit of time
C)  the volume of water passing through a specific point along the stream in a unit of time.
D)  the volume of excess water during flood stage
E)  the average amount of water in the entire stream system C

Question 7

The delta of the ______ River is a wave-dominated delta that resembles the Greek letter delta and is the origin of the name.

Accepted Answer

A)  Mississippi
B)  Nile
C)  Amazon
D)  Colorado
E)  Ganges

Question 8

___ is/are sudden localized floods of large volume and short duration,often triggered by heavy rainstorms.

Accepted Answer

A)  Sheetwash
B)  Dry flooding
C)  Flash floods
D)  Channel erosion
E)  Stream piracy

Question 9

The limit to downcutting of a stream is called the ___ level.

Accepted Answer

A)  head
B)  base
C)  flow
D)  stream
E)  foot

Question 10

The ______ load is sediment light enough to remain lifted indefinitely above the bottom by water turbulence.

Accepted Answer

A)  dissolution
B)  solution
C)  saltation
D)  suspension
E)  segregation

Question 11

Rivers may develop pronounced sinuous (wiggly) curves called a ___ pattern.

Accepted Answer

A)  braided
B)  meandering
C)  incised
D)  channelized
E)  rilled

Question 12

The discharge of a stream is the volume of water that passes a given point in unit of time (for example,50 cubic meters per second).

Accepted Answer

A) True 
 B)False

Question 13

The interrelationship of the hydrosphere,geosphere,biosphere,and atmosphere is visualized through the hydrogeologic cycle.

Accepted Answer

A) True 
 B)False  False

Question 14

A(n) ___ drainage pattern of a river resembles a tree.

Accepted Answer

A)  dendritic
B)  trellis
C)  bush
D)  arbor
E)  leaf

Question 15

The ______ is the total area drained by a river and its tributaries.

Accepted Answer

A)  flow area
B)  divide
C)  drainage basin
D)  domain
E)  hood

Question 16

A river's velocity is faster ____.

Accepted Answer

A)  along the inside of a meander loop near the point bar
B)  along the center line of the stream channel,exactly halfway between point bar and cut bank
C)  along the outside of a meander loop near the cut bank
D)  at the water's surface,in contact with the atmosphere
E)  along the channel bed at the very deepest part of the channel

Question 17

Braided streams flow in a network of interconnected rivulets around numerous bars.

Accepted Answer

A) True 
 B)False

Question 18

In North America,the ___ separates streams that flow into the Pacific Ocean from those that flow into the Atlantic Ocean and Gulf of Mexico.

Accepted Answer

A)  Appalachian Mountain Range
B)  Mississippi River
C)  Continental Transect
D)  Sierra Nevada Mountain Range
E)  Continental Divide

Question 19

A cutoff meander may become a crescent-shaped __.

Accepted Answer

A)  kettle lake
B)  moraine lake
C)  levee lake
D)  oxbow lake
E)  Yazoo lake

Question 20

A stream reaches it maximum velocity close to the shoreline.

Accepted Answer

A) True 
 B)False

Exam 16: Streams and Floods

Stream erosion and deposition are controlled primarily by a river's velocity.

Correct AnswerverifiedShow Answer

Drainage basins are bowl-shaped depressions with a lake in the middle,and all streams in the basin discharge their water and sediment into that lake.

Correct AnswerverifiedShow Answer

Paved areas and storm sewers decrease the rate of surface runoff of water.

Correct AnswerverifiedShow Answer

On large alluvial fans,the _____ sediment is deposited near the mountains.

Correct AnswerverifiedShow Answer

_____ refers to sand grain movement in a series of short leaps or bounces off the bottom.

Correct AnswerverifiedC

A stream's discharge is __.

Correct AnswerverifiedC

The delta of the ______ River is a wave-dominated delta that resembles the Greek letter delta and is the origin of the name.

Correct AnswerverifiedShow Answer

___ is/are sudden localized floods of large volume and short duration,often triggered by heavy rainstorms.

Correct AnswerverifiedShow Answer

The limit to downcutting of a stream is called the ___ level.

Correct AnswerverifiedShow Answer

The ______ load is sediment light enough to remain lifted indefinitely above the bottom by water turbulence.

Correct AnswerverifiedShow Answer

Rivers may develop pronounced sinuous (wiggly) curves called a ___ pattern.

Correct AnswerverifiedShow Answer

The discharge of a stream is the volume of water that passes a given point in unit of time (for example,50 cubic meters per second).

Correct AnswerverifiedShow Answer

The interrelationship of the hydrosphere,geosphere,biosphere,and atmosphere is visualized through the hydrogeologic cycle.

Correct AnswerverifiedFalse

A(n) ___ drainage pattern of a river resembles a tree.

Correct AnswerverifiedShow Answer

The ______ is the total area drained by a river and its tributaries.

Correct AnswerverifiedShow Answer

A river's velocity is faster ____.

Correct AnswerverifiedShow Answer

Braided streams flow in a network of interconnected rivulets around numerous bars.

Correct AnswerverifiedShow Answer

In North America,the ___ separates streams that flow into the Pacific Ocean from those that flow into the Atlantic Ocean and Gulf of Mexico.

Correct AnswerverifiedShow Answer

A cutoff meander may become a crescent-shaped __.

Correct AnswerverifiedShow Answer

A stream reaches it maximum velocity close to the shoreline.

Correct AnswerverifiedShow Answer

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C

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C

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False

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