30
The Uruguay River
Rio Negro, Rio Uruguay, Rio De la Plata
yes a billion
Mesopotamia
Yes it is by these to places lol
The three rivers that are close to Brazil's border are called the Paraguay, Parana, and Uruguay rivers. These rivers are located on the Triple Frontier.
I don't know the 3rd longest but the 1st longest is the Rio Negro (1390 mi.) the 2nd is the Uruguay River (990 mi)
Uruguay has no mountains but it has many hills.
None, Uruguay has hills.
The junction of Uruguay River and the Parana River is the Rio de la Plata or the River Plate. The river is part of the margin between Uruguay and Argentina.
Uruguay is bordered by Brazil to the north and Argentina to the west. To the south, it has a coastline along the Río de la Plata, an estuary formed by the confluence of the Paraná and Uruguay rivers.