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100

Sediment deposit extending from the mouth of a river into the sea

What is a delta?

100

Ridge formed when a river drops sediments along the edge of its channel

What is a levee?

100

Gently sloping coasts covered by sand or pebbles

What is a beach?

100

Limestone formations that become filled with various passageways and large caves

What are caverns?

100

A river or ice that flows slowly down from a mountainous region into a valley is this type of glacier

What is valley (or alpine)?

200

Stream that feeds into a river

What is a tributary?

200

Triangular deposit formed by short-lived desert streams

What is an alluvial fan?

200

Waves and currents that build offshore ridges of sand or gravel

What are bars?

200

The build up of dripstone on the ceiling which forms a large, icicle-mass of calcium carbonate

What are stalactite?

200

Suspension, saltation, and creep, in which wind transports sediments are these types of processes

What are eolian processes?

300

This type of weathering changes the composition of the materials

What is chemical weathering?

300

Waves that erode deep indentations into softer rock, these indentations are often exposed at low tide

What are sea caves?

300

When crashing waves gradually erode the rock at the base of the promontory, where portions of the coast fall into the sea, leaving behind a vertical face of rock

What is a sea cliff?

300

Regions of the earth's surface where limestone is exposed and abundant

What are karst regions?

300

Large hole in the ground left from the melting of a chunk of glacial ice

What is a kettle?

400

The level or nearly level land that borders a river and is covered by river water in flood time

What is a floodplain?

400

This type of physical weathering occurs when water soaks into a crack and freezes

What is ice wedging?

400

High ridges of rock and land that project out into the sea along deep-water shorelines

What are promontories?

400

The roof of a cavern collapsing, causing the ground above it to collapse. At the surface it creates a large funnel-shaped depression in the ground called this.

What are sinkholes?

400

A low hill formed when a glacier overruns a moraine is called this

What is drumlin?

500

Narrow, shallow cut in the soil

What is a rill?

500

U-shaped body of water near a river formed by movements of the river's channel

What is an oxbow lake?

500

Large bars that form narrow, sandy islands that lie off the coast of the mainland

What are barrier islands?

500

Water dripping from the ceiling that produce a cone-shaped mass on the floor

What are stalagmites?

500

This process occurs when oxygen from the atmosphere reacts with minerals like calcium, magnesium, and iron to form new compounds

What is oxidation?

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