i think its the farts in this world
mass wasting on the valley sides
Stream Load is the amount of material a stream can hold as it flows. As a stream flows it causes erosion, and this erosion is carried about as material in the stream. As too much is eroded, the extra material will fall to the bottom, or push it's way to the sides.
Headward erosion is a fluvial process of erosion that lengthens a stream, a valley or a gully at its head and also enlarges its drainage basin. The stream erodes away at the rock and soil at its headwaters in the opposite direction that it flows. Once a stream has begun to cut back, the erosion is sped up by the steep gradient the water is flowing down. As water erodes a path from its headwaters to its mouth at a standing body of water, it tries to cut an ever-shallower path. This leads to increased erosion at the steepest parts, which is headward erosion. (wikipedia)When this happens, the erosion can break through into another stream and the water from the stream is diverted. So the stream is "stealing" the other stream's water.
V-shape
A valley itself cannot cause erosion, but can be hugely affected by erosion. Usually Valley erosion is caused by glaciers, a common agent of erosion.
wind erosion
A stream valley is usually 'V' shaped, formed by erosion from a stream. A glacial valley is usually 'U' shaped, formed by the action of a glacier.
mass wasting on the valley sides
a stream is most likely widen by erosion
A mature stream causes more erosion than a young stream, due to the pure fact that theres more curve in a mature stream causing the sediments to shift more frequently.
Stream Load is the amount of material a stream can hold as it flows. As a stream flows it causes erosion, and this erosion is carried about as material in the stream. As too much is eroded, the extra material will fall to the bottom, or push it's way to the sides.
It is because if a stream gets bigger, it is allowed to carry more sediment. More sediment means more erosion.
the headward erosion hat brings about the formation of a river valley is an important factor in a process called stream piracy.
Gravity causes rock to fall away from steep mountains or cliffs and even by Landslides.
Headward erosion is a fluvial process of erosion that lengthens a stream, a valley or a gully at its head and also enlarges its drainage basin. The stream erodes away at the rock and soil at its headwaters in the opposite direction that it flows. Once a stream has begun to cut back, the erosion is sped up by the steep gradient the water is flowing down. As water erodes a path from its headwaters to its mouth at a standing body of water, it tries to cut an ever-shallower path. This leads to increased erosion at the steepest parts, which is headward erosion. (wikipedia)When this happens, the erosion can break through into another stream and the water from the stream is diverted. So the stream is "stealing" the other stream's water.
V-shape
A hanging valley is a destructive force. This is because the valley is formed by erosion, anything that is causes elevation to fall is destructive.