GENERAL KNOWLEDGE

Detailed explanation-1: -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. On a flat surface, parallel to the Earth’s surface, the force of gravity acts downward.

Detailed explanation-2: -Mass movements are defined as processes of erosion, transport and accumulation of material that occur on both gentle and steep slopes mainly owing to gravitational forces. Thus, mass movements results in levelling and forming of landscapes.

Detailed explanation-3: -Rockfall. Bits of rock fall off the cliff face, usually due to freeze-thaw weathering. Mudflow. Saturated soil (soil filled with water) flows down a slope. Landslide. Large blocks of rock slide downhill. Rotational slip. Saturated soil slumps down a curved surface.