Flat
FLAThope i helped :)
When a contour line crosses a river or stream, they make a "V" shape and points to the direction the river is flowing.
Concave bank- A Concave river bank is the steep slope shape of a river or stream. It is formed when materials and sediments are deposited on the ends and edges of the river,stream etc. The Convex is that of the opposite bank as the concave.Convex and Concave in a Meander gives the Channel an ASYMMETRICAL SHAPE.
Stream velocity is the speed at which water flows in a stream or river. It is typically measured in units of distance per time (e.g. meters per second) and can vary based on factors such as gradient, channel shape, and discharge.
A wider and shallower river stream bed tends to slow down the river's speed as frictional forces increase with more contact with the bed. This can reduce the river's power to cause erosion. Conversely, a narrower and steeper stream bed can increase the river's speed, which enhances its erosive power by allowing it to carry more sediment and erode the riverbanks more effectively.
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A stream-carved valley typically has a V-shape with a narrower and deeper profile due to the erosive force of flowing water. In contrast, a glacial-carved valley has a U-shape with a wider and shallower profile due to the movement of glaciers scooping out the landscape.
Because the river is small at the top and big lower down. Just sometimes you get a river that is big at the top and smaller at the bottom, which is why you should never say "always".
the 3 ways are:1) solution2)suspension3)bed load
A stream valley typically has a V-shape, while a glacial valley has a U-shape. This difference in shape is due to the different erosional processes involved. Stream valleys are eroded mainly by flowing water, while glacial valleys are shaped by the movement of glaciers that scrape and pluck rock and sediment.
If a rivers slope increases so does water speed. And as more water flows through a river speed also increases due to the volume of flow. As for the stream bed shape , friction affects river speed when the water is deep. Hope i helped!
Eel