Test 7

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1 point

A thick ice mass that forms over the land from the accumulation, compaction, and recrystallization of snow is a _____

drumlin

fjord

glacier

1 point

Icebergs are produced when large pieces of ice break off from the front of a glacier during a process called _____.

accumulation

plucking

calving

1 point

Glacial erosion ____________

creates mountains

moves rocks and sediment to new locations

happens rapidly

1 point

Valley glaciers are also known as _____________

mountain glaciers

alpine glaciers

moraine

1 point

What would happen if the Antarctic Ice Sheet melted?

Sea levels would rise 60-70 meters

There would be no effect

Sea levels would go down by about 100 meters

1 point

About what percentage of Earth’s land surface is currently covered by glaciers?

10%

50%

1 point

The Antarctic Ice Sheet contains ______

4% of Earth's ice

80% of Earth's ice

Neither of the above

1 point

Ice sheets, unlike valley glaciers __________

flow in one direction

flow in all directions

neither of the above

1 point

________ is almost completely covered by an ice sheet.

Greenland

Norway

Sweden

10.

1 point

Glaciers move quickly across land masses.

True

False

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