Mountains.
The Pyrenees mountain range forms a natural border between the Carolingian Empire and Spain.
Most mountain ranges for a barrier between two or more countries and those ranges are too numerous to list. One example is the Pyrenees, forming the boundary between France and Spain.
A group of adjacent mountain ranges is called a mountain chain.
A group of mountain ranges is called a mountain range system or a mountain chain.
Mountain ranges refer to a series of mountains aligned in a particular direction, usually forming a continuous line or sequence. Mountain chains, on the other hand, can be multiple ranges running parallel to each other or interconnected in a complex network. Essentially, mountain ranges are a subset of mountain chains.
Compression
Extreme mountain ranges
Spain has mountain ranges and a high central plateau.
Mountain ranges are natural barriers because they are high. That makes it difficult or impossible for various forms of life to cross from one side of a mountain range to the other.
The Pyrenees mountain range forms a natural border between the Carolingian Empire and Spain.
It forms mountain ranges, plateaus, valleys, and etc.
Most mountain ranges for a barrier between two or more countries and those ranges are too numerous to list. One example is the Pyrenees, forming the boundary between France and Spain.
the mountain ranges are are
Deep sea trenches, Mountain ranges, Volcanoes, and Earthquakes.
A group of adjacent mountain ranges is called a mountain chain.
The Alps mountain range forms most of the Austrian landscape. The three major ranges are the Southern Calcareous Alps, Central Alps, and Northern Calcareous Alps.
The mountain ranges in India are the Himalayas