The Rio Grande river. The Rio Grande, or Big River
new london
The natural boundary that separates New Jersy from Pennsylvania is the Delaware river
Tien Shan Mountains
the equator...... i think
Fall Line :)
The Ural Mountains.
A reef or low island.
The Pyrenees Mountains.
Rio Grande
A natural border, composed by the Rio Grande river.
The Rio Grande
The southwestern border of Texas is formed by the Rio Grande River, which separates Texas from the country of Mexico. This river stretches for about 1,254 miles, serving as a natural boundary between the two regions. It flows from the San Juan Mountains in Colorado to the Gulf of Mexico, playing a significant role in the geography and culture of the area.
The natural boundaries between the continents are oceans and seas. For example, the Atlantic Ocean separates Europe and Africa from the Americas, while the Pacific Ocean separates Asia and Australia from the Americas.