The statement that is not true about valley glaciers is that the flow rates are the same within the various portions of the glacier.
Explanation:
The valley glaciers are basically very large, elongated, linear body of ice. This body of ice moves from higher ground to lower areas. The movement is slow, usually only few mm per day, but it is not a movement that is consistent all over the glacier, as some parts of it move faster, while some slower. A typical feature formed by the valley glaciers is the U-shaped valley from the previously V-shaped stream valley.
The glaciers need special conditions to form, including very cold climate all year round, so that the ice can be sustained.
On their upper parts, the glaciers build up on ice mass, while on their lower parts they tend to melt, usually entering a body of water, or creating a small stream.
The large ice mass, its movement and spreading, results it large scale erosion, shaping up the valleys in accordance to the shape of the glacier itself, usually a U-shape.
