A river can form through ice melting from the mountains or through rainfall that collects in wetlands. Small streams that flow downhill join up and make larger streams which also combine to form rivers.
Kanawha River.
The two rivers that form the Ohio River are the Alleghenyand Monongahela rivers.
No.
It is a river.
the Rhine river
The plural form of the noun river is rivers.
A river valley forms from a river from the river going into a valley
The possessive form of the singular noun river is river's.example: The river's current is too strong for swimming.
At the mouth of a river.
No -- it was the Colorado River.
The two rivers that form the northern border of North Korea are the Yalu River and the Tumen River.
Water.