Sliding
mohorovicic discontinuity
rio grande and st.lawrence
Yes, it forms part of the US/Mexico border.
St Lawrence River (between New York and Ontario) and St Croix River (between Maine and New Bruinswick) both form part of the International Boundary between Canada and the US.
The Danube River and the Rhine River form the border of much of the northeastern part of the Roman Empire. These rivers provided natural barriers that helped protect the Empire from invasions from various tribes and armies.
There are three major rivers in Georgia. These include the Ocmulgee Riber, the Altamaha River, as well as the Flint River.
Syria is not surrounded by a sea, but part of its boundry lies on on the Mediterranean Sea
Tiete , e Pinheiros
Alfamo, Guacomo, Riberu, and Findu
The Colorado River forms part of the southwest boundary of the United States.
The rivers that form part of the border between New South Wales and Queensland are the Dumaresq (pronounced Dew-MERR-eck), the Macintyre and the Tweed. At the coast, the Tweed River forms the first part of the border. Further inland, the Macintyre and Dumaresq Rivers each form part of the border. The entire border is not actually formed by rivers.