Rock Slide

Weathering

• The breaking down of rock at or near earth's surface

Mechanical Weathering

• any of the various weathering processes that cause physical disintegration of exposed rock without any change in the chemical composition of the rock

Chemical Weathering

• Occurs when chemical reactions dissolve the minerals in rocks or change them into different minerals

Deposition

• The process by which sediments settle out of the water or wind that is carrying it, and is deposited in a new location

Erosion

• The process by which the surface of the earth is worn away by the action of water, glaciers, winds,etc.

Deflation

• The erosion of sand, soil, etc., by the action of the win

Windbreak

• a thing, such as a row of trees or a fence, wall, or screen, that provides protection from wind

Mudflow

• a flowing mass of soft, wet, unconsolidated earth and fine - grained debris, made fluid by rain or melted snow and often building up great speed

Rockslide

• the downward sliding of a relatively dry mass of earth and rock

Moraine

• a mass of rocks and sediment carried down and deposited by a glacier, typically as ridges at its edges or extremity

Esker

• a long ridge of gravel and other sediment, typically having a winding course, deposited by melt water from a retreating glacier or ice sheet

Outwash

• material carried away from a glacier by melt water and deposited beyond the moraine

Contour Farming

• the practice of tilling sloped land along lines of consistent elevation in order to conserve rain water and to reduce soil losses from surface erosion

Dunes

• a mound or ridge of sand or other loose sediment formed by the wind especially on the sea coast or in a dessert

Soil Erosion

• the washing away of soil by the flow of water

Overgrazing

• graze so heavily that the vegetation is damaged and the ground becomes liable to erosion

Terracing

• a raised, flat mound of earth with sloping sides

Slump

• a form of mass wasting that occurs when a coherent mass of loosely consolidated materials or rock layers moves a short distance down a slope

Creep

• the slow downward progression of rock and soil down a low grade slope

Sandstorm

• dust storm; a storm caused by strong wind and sand or dust