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ES: Ch. 4
CH 4
| Term or Question | Answer or Definition |
|---|---|
| Large, deep grooves in rock made by glaciers | striae |
| Natural ridge an the side of a river's channel | levee |
| where streams merge and flow toward the sea as a large river | river system |
| where a glacier overruns a moraine | drumlin |
| source of a river | headwaters |
| particles that are too heavy to be lifted by the wind and are instead rolled | creep |
| 2 general types of weathering | chemical and physical |
| most important effect of wind erosion | deflation |
| narrow, sandy islands that lie off the mainland | barrier islands |
| the breaking down of rocks by natural processing | weathering |
| winding curve in river | meander |
| weathering where rainwater soaks into cracks of a rock and then freezes, which splits the rock | ice wedging |
| region of land drained by a river system | drainage basin |
| main agent of chemical weathering | water |
| five major types of mass wasting | soil creep, mudflows, avalanche, landslides, & rockfall |
| weathering where rocks are peeled away in layers | exfoliation |
| deposits of clay and silt left by sandstorm | loess |
| preventing erosion by modifying smooth slopes into a series of steps | terracing |
| sharp point of a mountain that contains 3 or more cirques | horn |
| natural acid found in ground water that promotes chemical weathering | carbonic acid |
| fan-shaped deposits left after a dry stream in desert; also located at the mouth of the stream | alluvial fan |
| 2 major types of glaciers | continental and valley(alpine) |
| region where limestone is exposed and abundant on the earth's surface | karst region |
| vertical face of a rock that forms when waves erode land | sea cliff |
| glacier-carved valley that fills with seawater | fjord |
| huge bowl-depression dug out by a valley glacier | cirque |
| piles of debris left behind after a glacier melts | moraines |
| ice sheets smaller than glaciers | ice caps |
| dripstone on the floor of a cave | stalagmite |
| dripstone on the ceiling of a cave | stalactite |
| lake formed when a sharp curve cuts itself off from the river | oxbow lake |
| fan-shaped deposits at the mouth of a river | delta |
| rock most commonly associated with caverns | limestone |
| pile of rocks deposited parallel to shore to prevent erosion | breakwater |
| carrying away of rock fragments by wind or running water | erosion |
| large stream from mountains to sea | river |
| structure formed when middle of sea arch falls | sea stalagmite |
| limestone formations that have various passageways and large caves | caverns |
| erosion from windblown sand | abrasion |
| land that boarders river and during flood is completely submerged | floodplain |
| deep cracks on surface of glacier | crevasses |
| made when a sea cave is eroded | sea arch |
| large, funnel-shaped depression in ground caused by a cavern ceiling collapsing | sinkhole |
| sediments carried by a stream | load |
| process where wind transports sediments | aeolian |
| a stream that feeds a river at various points | tributary |