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1 Takes place when air in a joint is suddenly compressed by a wave closing the entrance of the joint. This then cracks it.
2 The transport of loosened soil particles by surface runoff that is flowing downhill in thin sheets.
3 A type of erosion that occurs when a rock is rapidly heated up by the sun.
4 They erode predominantly by three different processes: abrasion/scouring, plucking, and ice thrusting.
5 The impact of a falling raindrop creates a small crater in the soil, ejecting soil particles.
6 The process by which soil and rock are removed from the Earth\'s surface by natural processes such as wind or water flow, and then transported and deposited in other locations.
7 Mass movement is the downward and outward movement of rock and sediments on a sloped surface, mainly due to the force of gravity.
8 Valley or stream erosion occurs with continued water flow along a linear feature. The erosion is both downward, deepening the valley, and headward, extending the valley into the hillside.
9 At extremely high flows, kolks, or vortices are formed by large volumes of rapidly rushing water.
10 It occurs when runoff water accumulates, and then rapidly flows in narrow channels during or immediately after heavy rains or melting snow, removing soil to a considerable depth.
11 A major geomorphological force, especially in arid and semi-arid regions.
12 Referred to the development of small, ephemeral concentrated flow paths, which function as both sediment source and sediment delivery systems for erosion on hill slopes.
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