Question

What is land slide? What are the causes of landslide

Answer 1

Here is your answer

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