What is land slide? What are the causes of landslide
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- 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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