GEOLOGY

Detailed explanation-1: -A landslide is the mass movement of rock, soil, and debris down a slope due to gravity. It occurs when the driving force is greater than the resisting force.It is a natural process that occurs in steep slopes. The movement may range from very slow to rapid. It can affect areas both near and far from the source.

Detailed explanation-2: -They are classified into four main types: fall and toppling, slides (rotational and translational), flows and creep.

Detailed explanation-3: -movements are included in the general term “landslide, ” the more restrictive use of the term refers only to mass movements, where there is a distinct zone of weakness that separates the slide material from more stable underlying material. The two major types of slides are rotational slides and translational slides.

Detailed explanation-4: -Landslides often occur in areas with oversteepened slopes, weak soils/bedrock, or de-vegetated slopes (whether by human deforestation or natural events such as wildfires). Some of the most damaging landslides are triggered by water, typically from intense short-term rainfall or long-term saturation of the slope.