Earth Science Chapter 8 Review

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What is sediment that is deposited by glacier ice?

Till

During what process does wind pick up fine sediment?

Deposition

On what continent do continental glaciers exist today?

Antarctica

What forms when a rock in glacier ice slides over the Earth's surface?

Groove

What causes sediment and rock to move to lower elevations through time?

Gravity

What can reduce wind erosion?

Windbreaks

What consists of fine-grained, wind-blown sediment?

Loess

What are 3 examples of erosion?

Water, wind & glaciers

What is deposition?

When agents of erosion drop the sediments they are carrying as they lose energy. (When sediments are eroded - they are NOT lost from Earth, just relocated!)

What is the difference in a rock fall & a rock slide?

Rock fall is when blocks of rock break loose from a steep slope & tumble through the air.
Rock slide is when layers of rock slip downslope suddenly

What are the 3 forms of glacial deposition?

MORAINE - A big ridge of material that piles up that looks like it's been pushed by a bulldozer.
OUTWASH - Material deposited by the meltwater from a glacier (usually at the end of the glacier).
ESKERS - Looks like a long winding ridge, forms in a melting glacier when meltwater forms a river within the ice.

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