GEOLOGY

Detailed explanation-1: -A landslide occurs because the force of gravity becomes greater than either friction or the internal strength of the rock, soil, or sediment. The amount of friction between a deposit of rock or soil and the slope that it rests on plays a large role in when landslides happen.

Detailed explanation-2: -Landslides are a type of “mass wasting, ” which denotes any down-slope movement of soil and rock under the direct influence of gravity.

Detailed explanation-3: -But gravity also causes erosion directly. Gravity can pull soil, mud, and rocks down cliffs and hillsides. This type of erosion and deposition is called mass wasting. Landslides are the most dramatic, sudden, and dangerous types of mass wasting and cause $1 billion to $2 billion damage in the United States each year.

Detailed explanation-4: -□ Gravity Erosion. □ Gravity Erosion is better known as Mass Movement and is defined as the transfer. of rock and soil down‐slope by direct action of gravity without a flowing medium.

Detailed explanation-5: -Gravity is the main force responsible for mass movements. Gravity is a force that acts everywhere on the Earth’s surface, pulling everything in a direction toward the center of the Earth.