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Geography Test 5 > Chapter 16 > Flashcards

Chapter 16 Flashcards

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0
Q

What is the most important external agent in the fluvial processes?

A

Running water

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1
Q

What type of water do fluvial processes involve?

A

Running water moving Overland

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2
Q

What is the ultimate goal of the fluvial processes?

A

To smooth landforms

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3
Q

What is streamflow?

A

The channel movement of water along valley bottom

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4
Q

What is Overland flow?

A

Unchanneled downslope movement of surface water

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5
Q

What is a valley?

A

A portion of the terrain in which a drainage system is clearly established

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6
Q

What is an interfluve?

A

Higher land above valley sides that separates adjacent valleys

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7
Q

Drainage basin

A

Area within which all water flows towards a single stream

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8
Q

Drainage divide

A

Highground that separate streams flowing into one drainage basin from streams flowing into another

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9
Q

Stream order

A

The arrangement of streams in the drainage basin

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10
Q

Splash erosion

A

Movement of particles downhill caused by collision of raindrops with the ground

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11
Q

Sheet erosion

A

Thin sheet of water that transports material already loosened by splash erosion

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12
Q

Rills

A

Tiny channels that occur when volume of overland flow increases resulting in rill erosion

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13
Q

Erosion by streamflow

A

More erosion because there’s more water

Chemical weathering

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14
Q

How is the effectiveness of erosion determined?

A

The flow speed, turbulence of flow, and by the resistance of the bedrock

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15
Q

What is competence?

A

The size of the largest particle that can be transported by a stream

16
Q

What stream capacity?

A

The maximum load that a stream has the potential to transport

17
Q

When does deposition occur?

A

When flow speed or water volume decreases

18
Q

What is alluvium?

A

Stream deposited sediment

19
Q

What is downcutting

A

Lowering of the streambed

20
Q

Deep valley with steep sides

A

V-shaped

21
Q

What causes valley deepening

A

Waterfalls and Rapids

22
Q

What is the limit of downcutting called

A

Baselevel

23
Q

What causes valley widening

A

Weathering, mass wasting, overland flow

24
Q

Is lateral erosion?

A

The main flow of the current swings from one bank to the other, eroding where the water speed is greatest and disposing where it is released

25
Q

Lateral erosion versus alluvium

A

Lateral erosion is what leads to the alluvium being deposited

26
Q

How is A valley Lengthened

A

Through headword erosion or Delta formation

27
Q

Water flows fastest…

A

Round edge of curves

28
Q

Waterflow slowest

A

In the middle of the stream

Geography Test 5 (1 decks)

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