A stream smaller than a river is known as a creek
A stream or river called that flows into a larger stream or river is called a tributary.
A smaller stream of freshwater that flows into a larger stream is called a "tributary." Tributaries contribute to the flow and water volume of the main river or stream they feed into, and they play an important role in the watershed ecosystem.
tributary
The smaller stream is the tributary of the larger river.
The smaller stream is a tributary of a larger stream, river or lake.
Tributary.
Answer!-Usually the start of a river is called its source and the end of the river is called the mouth.
It is called a tributary.
The smaller river is a tributary to the big one.
tributary is the collective term A tributary is a smaller stream which flows into a larger river. The name of an individual stream depends on the size of the stream. It may be a river or a creek or a canal if it is manmade.
Tributary
A small freshwater river or stream flowing into a larger river is called a tributary or feeder river. A tributary is a stream or river that flows into a mainstem (or parent) river or a lake. For example, a tributary can be a creek that flows into a river. Or it can be a small river that flows into a larger river. A tributary does not flow directly into a sea or ocean. Some large rivers can have up to 100 tributaries. The spot where the smaller and larger river meet is called a "confluence". In contrast, a body of water that branches off and flows away from the main river is called a distributary.