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Geography > Glaciers > Flashcards

Glaciers Flashcards

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1
Q

What is a glacier

A

A large mass often shaped like a river that flows very slowly

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2
Q

What is an ice sheet

A

A thick Layer of ice that covers more than 50,000 sq km

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3
Q

How are glaciers formed? 

A

Snow builds up and compresses the lower snow to ice 

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4
Q

Erosion definition 

A

The wearing away of land 

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5
Q

What is weathering? 

A

When rock or ice is exposed to weather conditions, which cause it to change 

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6
Q

How many glacial processes are there? 

A

3

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7
Q

What are the three glacier processes?

A

Plucking, abrasion, Freeze thaw

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8
Q

What is plucking? 

A

When a Glacier moves down a hill, it plucks the rocks and trees out the ground 

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9
Q

What is abrasion?

A

As the glacier moves downhill the rocks get scratched across and where to land down and causing striations 

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10
Q

What is freeze thaw?

A

When water in cracks freezes and expands the crack

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11
Q

The eroding, ice, carves out, steep mountainside

A

Arête

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12
Q

A sharp edged mountain peak

A

Pyramid peak

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13
Q

How deep depression on a hillside or mountain with a steep back wall

A

Corrrie

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14
Q

Play Heal melt water

A

Tarn

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15
Q

Wide u shaped and usually a river flows through the bottom 

A

U-shaped valley 

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16
Q

What is transportation? 

A

The moving or carrying something for example, a glacier can carry rocks 

17
Q

Super glacial transportation

A

Sediment transport on top of the glacier

18
Q

Englacial transportation

A

Sediment is transported in the glacier 

19
Q

Subglacial transportation

A

Sediment is transported on the bed of the glacier

20
Q

What is a hazard?

A

When your in danger

21
Q

What is a resource?

A

Something we can get from a glacier that benefits us 

22
Q

What is an avalanche?

A

An avalanche is a sudden and fast flow to snow, sliding down a mountain 

23
Q

How can avalanches be prevented?

A

Explosion bombardment, building regulations, shipping forecast, snow fence and shed, aforestation

Geography (5 decks)

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