(c) steepen the slope artificially a way to increase the angle of repose for a slope.
With discharge, the stream's width, depth, and average speed all rise. Despite this, the stream's angle will decrease.
The gradient of a river from source to mouth typically changes.
Typically, a stream's beginning headwaters have steeper slopes than its mouth, when it empties into another body of water (like the ocean).
Which branch of the river links to the main river channel?
The combining of tributaries is sometimes referred to as a "confluence" when two or more bodies of water come together. The opposite of a tributary is a distributary, which is a river or stream that flows away from the main stream.
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