The mouth of a river is the outlet.
A delta is a body of sediment deposited at the mouth of a river or stream where it enters an ocean or lake.
The source of a river is where it begins, the mouth of a river is where it enters the sea.
Head is the source and mouth is where it ends.
Answer!-Usually the start of a river is called its source and the end of the river is called the mouth.
stream discharge is the amount of water flowing through a space OR increases between its source or mouth
Answer 1The point at which a waterway [creek, river, etc.] enters another body of water [stream, lake, sea, ocean, etc.] is called the "river mouth."
The source of a river is where it starts as a tiny stream. The other end is the mouth, where it reaches the sea.
This is the river delta.
The land form often formed at the mouth of a heavily silted stream is called a delta. This triangular-shaped area is created as the sediment carried by the stream is deposited when the water flow slows down upon entering a larger body of water, such as an ocean or a lake. Deltas are often fertile areas due to the rich soil deposited by the stream.
at the source because it's narrow and steep so it has a track which keeps it long and fast
The main parts of a river system is Tributaries, Watersheds, and Divides.