1.

What is land slide? What are the causes of landslide

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  1. what is landslide?

        A landslide is defined as the movement of a mass of rock, debris, or             earth down a slope.

    2. what causes landslide?

The causes of landslides are usually related to instabilities in slopes.

Some natural causes of landslides are:

  • saturation by rain water infiltration, snow melting
  • rising of groundwater or increase of pore water pressure
  • erosion of the toe of a slope by rivers or ocean waves
  • physical and chemical weathering

Landslides are aggravated by human activities, such as:

  • deforestation, CULTIVATION and construction
  • vibrations from MACHINERY or traffic
  • blasting and mining
  • earthwork
  • agricultural or forestry activities (logging), and URBANIZATION, which change the AMOUNT of water infiltrating the soil



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