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100

A natural ridge formed along the edge of a river's channel

What is a levee?

100

The piles of debris left behind when a glacier melts

What are cirques?

100

A large stream that carries water from the mountain to the sea

What is a river?

100

The type of weathering which involves the breaking or peeling away of rock into layers

What is exfoliation?

100

The name for the time when one-third of the earth's land area was covered in glaciers

What is the Ice Age?

200

The natural processes that break down rocks

What is weathering?

200

A narrow, sandy island formed by a large bar off the coast of the mainland

What is a barrier island?

200

US

Lose 200 points

200

The main agent of chemical weathering

What is water?

200

THEM

Lose 200 points

300

The process that occurs when oxygen from the atmosphere reacts with minerals to form new compounds

What is oxidation?

300

Large, deep grooves and scratches in rock, produced by glaciers

What is striae?

300

The name of the triangular sediment deposit formed on a plain by a temporary mountain stream

What is an alluvial fan?

300

The side of a dune which has a gentle slope and progresses up to the crest

What is the windward side?

300

Large, icicle-like masses of calcium carbonate found in caves

What is dripstone?

400

The stripping away of a thin area of topsoil from the surface of the land

What is sheet erosion?

400

The type of landslide which involves fine soil and small pebbles fall in large masses down a slope

What is a earth slide?

400

The source of a river

What are headwaters?

400

A spire-like mass of dripstone on the floor of a cave

What is a stalagmite?

400

A huge, bowl-shaped depression dug out by a valley glacier

What is a cirque?

500

US

Add 500 points

500

A sheet of glacial ice that covers an immense area of flat land

What is a continental glacier?

500

The fan-shaped deposit left by a large river when it reaches the ocean

What is a delta?

500

THEM

Add 500 points

500

After rock has been broken into fragments and the wind and running water carries them away is called

What is erosion?

600

After physical forces carry away rock fragments and they are carried away to a new location is a process called

What is deposition?

600

Suspension, saltation, and creep are what kind of process

What is eolian?

600

The process of modifying a smooth slope into a series of level, stair-like steps 

What is terracing?

600

The drainage divide in the Rocky Mountains west of the Mississippi drainage basin

What is the Great Divide?

600

The natural acid found in rainwater and groundwater, which promotes chemical weathering of rocks

What is carbonic acid?