Weathering Erosion Wind Glacier Gravity

100

what is carbonic acid
All of the following: ice, tree roots, burrowing animals and carbonic acid cause mechanical weathering EXCEPT

100

What is sediment
Eroded soil can enter streams, causing them to fill with ___________

100

What is loess deposits
Many farmlands of the Midwestern US are on fertile soil that developed from

100

What is plucking
This occurs when glacial ice melts and the water flows down into cracks in rocks, refreezes, fractures the rock into pieces.

100

What is creep
Trees, walls and leaning fence posts are signs of this

200

What is oxidation
______________occurs when materials containing iron are exposed to oxygen and water.

200

What is increases
When people remove vegetation it affects erosion how

200

What is abrasion
____________can be compared to sandblasting

200

What is a moraine
Till that is deposited at the end and sides of a glacier when it is not moving forward is

200

What is mass movement
Any type of erosion that happens as gravity moves materials downslope is

300

What is climate
The rate of weathering depends on the area's ________.

300

What is the four agents of erosion
Wind, water, gravity and glacier are

300

What is a dune
This forms when sediments are blown against an obstacle and settle behind it.

300

What is a glacier
A large mass of ice and snow slowly moving

300

What is deposition
The dropping of sediments as they lose energy

400

What is chemical
____________weathering occurs when chemical reactions dissolve or change the minerals in rocks.

400

What is plant vegetation, insert drainage, and build walls
Three ways people can reduce erosion on steep slopes is

400

What is abrasion
This can be compared to sandblasting

400

What is the direction the glacier traveled
Grooves and striations on the bedrock indicate this

400

What is a mudflow
A thick mixture of water and mud flowing down hill

500

What is water freezing and thawing
Ice wedging is brought about by

500

What is erosion
Overgrazing, deforestation, and building on steep slopes increase this

500

What is deposition
The dropping of airborne particles

500

What is a moraine
A ridge or pile of sediment left at the end of a glacier

500

What is slump
Mass of material slips down along a curved surface when the base material can no longer support the rock and sediment above.

Weathering and Erosion

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