steamboats
there are rapids not very far upstream
Downstream. The source of a river is always upstream.
No, a river only flows one way, they either flow upstream or downstream not both.
The upstream of a river is its mouth, AKA, the opening to the ocean, and everything in between. Downstream is the source, AKA the "beginning", such as a lake, and everything in between.To put it simply:A RIVER:(Mouth)=--------------------------------------------------------------------------------0 (Lake) Downstream
Water always flows down a river, so upstream is the opposite direction from the direction in which the water flows.
because it was easier to travel in the olden times
Evry, Melun, Fontainebleau, Troyes are upstream the Seine river from Paris.
Upstream or up river
Upstream or up river
By definition all rivers run downstream, with the possible exception of tidal effects where the river meets the sea (as the tide comes in, in some places the water may run "backward" up the river for a usually short distance).
It does not. Actually it does. I'm in 6th grade and learning about that.The Nile flows upstream because of gravity. The majority of the Nile runs south to north because of gravity. However, there are also parts of the river that run north to south, ex. about 200 miles in Sudan. At no point, however, can the river run upstream. Upstream by definition is opposite the flow of the river (Merriam-Webster).
Valleys and rivers will make a v-shape. (with the tip of the v pointing upstream)