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Unit 2
Earth's Surface
| Question | Answer |
|---|---|
| A destructive process that carries sediment from one place to another | erosion |
| A constructive process that builds up sediment | deposition |
| Earth's surface is shaped by a combination of | constructive and destructive forces |
| Agents of erosion | wind, water and ice |
| steep slope equals | faster erosion |
| faster erosion equals | straight path |
| straight path equals | larger sediment moved |
| flat slope equals | slower erosion |
| slower erosion equals | curvy path |
| curvy path equals | smaller sediment moved |
| total amount of sediment moved | load |
| total amount of water the moves past a point in a given amount of time | discharge |
| acidic water that can dissolve rock | groundwater |
| formations that are a result of groundwater erosion | caves and sinkholes |
| landforms along a shoreline that sticks out | headlands |
| carries eroded material along the shoreline | currents |
| deposits of sand along a shoreline | beach |
| exposed ridge of sand, rock or shells | sandbar |
| long, narrow island made of sand, runs parallel to the shoreline | barrier island |
| pulling down of large amounts of rock, land or debris | erosion by gravity (or mass wasting) |
| examples of mass wasting | mudslide, landslide or rockslide |
| slow process of erosion by gravity | creep and slump |
| rock hitting other rocks | abraded rocks |
| smaller sediment in a desert being blown to another locattion leaving bigger rocks | desert deflation |
| mounds of sand deposited by wind | sand dunes |
| thick deposits of extremely fine materials that has baeen carried a long way | loess |
| large mass of moving ice | glacier |
| sediment carried and deposited by a glacier | glacial drift |
| sharp pyramid peaks in an alpine glacier | horn |
| bowl shaped depressions of an alpine glacer | cirques |
| jagged peaks between cirques | aretes |
| shape of valley after an alpine glacier has passed through | u shaped |
| network of waterways that lead to the ocean | drainage basin |
| sediment deposited on a river's edge after flooding has occurred | floodplain |
| fan shaped deposit at the base of a mountain | alluvial fan |
| sediment that has built up at the base or mouth of a river | delta |
| mapping used for navigation | topography |
| show features of the land | contour lines |
| rise in elevation from one contour line to the next | contour interval |
| distance above sea level | elevation |
| steepness of a landform | slope |
| contour lines close together | steep slope |
| contour lines spread apart | gentle slope |
| difference between highest and lowest elevation | relief |
| bold contour lines that show the elevation on a topographic map | index contour line |
| remote sensing | process of gathering and analyzing information about an object without physical contact with the object |
| two forms of remote sensing | aerial and satellite |
| network of satellites that orbit Earth that allow you to gather data and navigate | GPS |
| a program to view and make images and maps that have layers of specific information | GIS |