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2.1 & 2.2
| Term | Definition |
|---|---|
| erosion | harsh movement of wind, ice, and water |
| deposition | in which a material is laid down |
| floodplain | an area along the river |
| delta | a mass of material deposited |
| groundwater | water beneath the earth |
| beach | an area of shore line made up of deposited segment |
| sandbar | a low ridge of sand deposited along the shore of a lake or sea |
| barrier island | long ridge of sand |
| loess | fined-grained segment of quartz |
| glacier | a large mass of ice year-round |
| glacial drift | rock carried by other glacier |
| creep | the slow downhill movement of weathered rock material |
| rockfall | mass of falling rock |
| landslide | the sudden movement of a rock |
| mudflow | the flow of a mass of mud and rocks |