How does a river change along its course?
Geography essay: how does a river change along its course? A river through the time that it exists changes its course from how it first began. The two parts of the river is the upper course and the lower course. These two parts of the river have very varied properties and do opposite things. Before finding out how a river changes on its course we must first know what a river does. Rivers do three main things: · Erosion (when water hits rocks and makes it wear away into silt) · Transportion (when the current of the water takes the silt with it) · Deposition (when the water leaves the silt behind) These things can be shown in a simple diagram: Erosion varies in the two courses. In the upper coarse vertical erosion takes place. In the lower coarse lateral erosion takes place. Other features of the upper and lower coarse are...