It the end .The water carried by the rivers flows into anther rivers (tributaste)
The mouth
Lower course
The water flows more slowly .The landcapes is less seep
The initial stage on the rivers (mountains) The water flows raplidy . The rivers move the rocks with it
Upper course
Source
MIDDLE COURSE
It the final stage . The rivers flows slowly . It diposited the rock . It form curves called meanders
The starting point of the rivers