Erosion

Erosion is an event soil erosion, sediment, rock, and other particle, due to wind, water or ice and rain characteristic. Erosion is distinguished by the type of energy that is: water erosion, wind erosion (deflation), ocean wave erosion (abrasion / erosion marin), glacier erosion (glacial). The process of erosion by flowing water occurs in four different levels according to soil degradation or erosion of rock, as follows:

1. Splash erosion, the process of erosion by rain that falls to earth
2. Sheet erosion, which is the uppermost layer of soil erosion that reduced fertility. Sheet erosion is characterized by: brown, the color of the water that eroded become paler; reduced soil fertility
3. Gully erosion, is a continuation of sheet erosion. Characteristic erosion gully is a deep furrows in the soil as the water flow
4. Erosion ditches, trenches are formed due to erosion or stream valley. If erosion continues trench, then the area of ​​degraded land can be expanded, and at this level already broken ground. 

Some of the landscape due to erosion, among others:

1. Erosion by water can result in:
   - Increasing the river bank
   - The steep valley
   - Formation of caves
   - Increase the water bodies
2. Wind erosion generally occurs in the desert. Shape the earth's surface is formed as follows:
   - Mushroom Rock
   - canyon
3. Abrasion usually occurs on the coast, forming:
   - Wall of the steep coast
   - Recesses (grooves on the wall of the cliff)
   - Caves beach
   - Stone screen