Landforms And Landscapes Flashcards

1
Q

How much of today’s land mass is covered by ice?

A

10%

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2
Q

Where is today’s global ice located (%)?

A

85% Antarctica
10% Greenland
5% Tundra e.g. Alaska, Russia

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3
Q

What was the name of the last glacial period?

A

Pleistocene era

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4
Q

What are the characteristics of a polar environment?

A

Large snowy areas
Large expanses of ice
Low precipitation
Temperatures <50⁰C

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5
Q

What is an example of a polar Environments?

A

Antarctica, Greenland

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6
Q

What are the characteristics of alpine environments?

A

High altitude
Heavy snow in winter
Warmer summers
Temps 10-15⁰C

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7
Q

What is an example of an alpine environment?

A

Alps, Andes, Rockies, Himalayas

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8
Q

What are the characteristics of a glacial environment?

A

Heavy snow in winter
Warmer summers

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9
Q

What is an example of a glacial environment?

A

Greenland

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10
Q

What are the characteristics of a periglacial environment?

A

Permafrost
Found along the edges of polar regions
Short summers
Active layer of soil

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11
Q

What is an example of a periglacial environment?

A

Northern Canada, Northern Russia

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12
Q

What is the thermohaline system?

A

Part of the ocean circulation, caused by differences in water density. Differences in density are caused by water temps and salinity

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13
Q

What are ice lenses?

A

Formed when moisture, diffused within soil or rock, accumulates

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