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Formation of Landforms

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  • What are two ways humans can help or protect landforms?
    People can plant beach grass where sand dunes are eroding. New wetlands can be developed to replace damaged areas.
  • What causes erosion to occur the fastest: wind, water or ice?
    water
  • How are canyons formed?
    by erosion
  • Both canyons and deltas are: ________ , __________ , and _______ .
    formed by Earth's natural processes, formed by the flow of water, occur over time
  • True or False: Sediment can be moved by wind or water.
    True
  • What are two ways humans can change or damage landforms?
    Sand dunes can be damaged by recreational vehicles like ATVs. Dams in rivers can reduce the natural flow of water.
  • a low area of land between two higher areas, often formed by water
    valley
  • The surface of the Earth is shaped by what 3 things?
    water, wind, and ice
  • a deep valley carved by flowing water
    canyon
  • the removal of weathered rock material that is transported (moved) to another location by water, wind, ice or gravity.
    erosion
  • What are some effects of heavy rain in one area?
    1. more erosion will occur 2. rocks, sand and soil will be moved. 3. streams will have more flowing water
  • the breakdown of rocks into smaller pieces by wind, rain or temperature change
    weathering
  • What three things are needed to form a sand dune?
    a large amount of sand, wind, and a good location for sand to build up
  • Mounds of sand that form on beaches and in deserts are called ____ .
    dunes
  • A fan-shaped mass of mud and sediment that forms where a river enters a large body of water is called a ___________.
    delta
  • What are deltas shaped like?
    triangles
  • occurs when eroded sediments are dropped in another location
    deposition
  • How do sand dunes form?
    winds carry sand piles up to form dunes.
  • What landform is made by deposition?
    delta
  • True or False: A river can cut through rock.
    True
  • The faster the water, the more energy it has which causes more ________ .
    erosion
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