Answer :
Water erosion occurs when moving water carries away bits of rock and dirt. Sheet erosion moves soil from raindrop splashes and runoff water. This occurs evenly and over a gradual slope. Rill erosion concentrates in a small dip in the landscape and causes a well-defined channel. Gully erosion expands a rill over time to form a large rift in land. Bank erosion occurs due to the natural flow of streams and rivers.
Answer:
Gully Erosion: It is a type of water erosion in which soil is eroded by the running of surface water. In this erosion, gullies are made by the heavy flow of surface water.
Hillsides are more affected by the gully erosion when they cut the vegetation by deforestation or by other methods. As a result, the top layer of soil is easily taken off as the water flow this type of erosion is called as gully erosion.