A V-shaped valley has a ____ channel and steep sides. V-shaped valleys are found in the ____ course of rivers. Stage 1 - Fast flowing water in the upper course of a river begins to ____ erode the landscape. ____ forces pieces of rock to break off of the riverbed and banks. The riverbank is scraped and further worn away by pieces of rocks in a process called ____. Stage 2 - The process of ____ loosens the rocks at either sides of the channel, making the valley sides steeper. Stage 3 - The river transports the rocks downstream through the processes of ____ and ____, further eroding the channel. This creates a V-shaped valley of ____.

River processes

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