Water erosion
Glacial erosion
Erosion by a river (Colorado River)
A king
fresh crops
The major earthquakes of 1811-1812 was the worst disaster that struck the Mississippi River valley.
erosion corrosion, close?
Glacial erosion formed Yosemite Valley. Meanwhile, the streams eroded the granite rock to form the waterfalls we know as Yosemite Falls and many others today.
The type of soil erosion that takes place mostly at river banks is sheet erosion, its caused by hydraulic action of water against the adjacent land. In some cases where the power of the river is great Gully Erosion could develop.
Farming
the poemy ones
In geology, a valley is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge. The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys. Most valleys belong to one of these two main types or a mixture of them, at least with respect of the cross section of the slopes or hillsides. a v shaped valley is where the valleys faces form in the shape of a letter v. this is ofen caused by a river flowing through the middle and causing erosion.
Is this some kind of trick question? The Rhine Valley (German Rheintal), of course.