A source of a river is where it starts. A source can be melting glacial ice, marshes or a water spring.
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Answer!-Usually the start of a river is called its source and the end of the river is called the mouth.
The source of a river is where the river starts.
go to a river and find out look at a picture of a river i don't know don't ask me
like a normal river really filled with water
like the mouth of a river
You would normally find the source of a river at high ground. Say your on a deserted island, you would look for the highest point to find freshwater which is normally near the source of the river. This is because of gravity, the water would be searching for the lowest point.
show me a picture of a river rat
A source is the beginning of a river or water way and a mouth is the end of that river or body of water!
The source or beginning of a river is called the 'headwater'. The beginning of a river is known as the source.
a delta
The place where the river begins is called a source.