Erosion
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Erosion

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Erosion

Erosion

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Erosion Erosion Presentation Transcript

  •  Is the process by which soil and rock are removed from the Earths surface by natural processes such as wind or water flow, and then transported and deposited in other locations.
  •  Excessive erosion causes problems such as desertification, decreases in agricultural productivity due to land degradation, sedimenta tion of waterways, and ecological collapse
  •  There are different types of erosion: Wind erosion, Water erosion, Gravitational erosion, Coastal erosion
  •  Wind erosion is a major force, especially in arid and semi- arid regions. It is also a major source of land degradation, evaporation, desertification, harmful airborne dust, and crop damage—especially after being increased far above natural rates by human activities such as deforestation, urbanization,
  •  Shoreline erosion, which occurs on both exposed and sheltered coasts, primarily occurs through the action of currents and waves but sea level (tidal) change can also play a role.
  •  Water erosion is the transport of loosened soil particles by surface runoff that is flowing downhill in thin sheets.
  •  http://www.educaplay.com/es/recursoseduca tivos/675696/erosion.htm
  •  The…………… is the process by which soil and rock are removed from the Earths surface by natural processes There are different types of erosion, ………… , …………, ………… and …………. The erosion causes several problems such as……………. DESERTIFICATION-GRAVITATIONAL-WIND- WATER-COASTAL-EROSION
  •  NESOIOR: LAOTSCA: VNOITITAGRLA: RWTAE: DNWI:
  •  What the excesive erosion cause? How many types of erosion exists? Tell them.
  •  Water erosion: http://www.youtube.com/watch?v=ofhQvAu_ L1I Coastal erosion: http://www.youtube.com/watch?v=zUh3Weil FN4 Wind erosion: http://www.youtube.com/watch?v=PQmon7R j6ns Gravitational erosion: http://www.youtube.com/watch?v=F5oK21B Mg2s