The Ural Mountains and the Caucasus Mountains.
Pacific mountain system, series of mountain ranges that stretches along the Pacific Ocean coast of North America from northern British Columbia (Canada) to northwestern Mexico. They run for some 4,500 miles (7,250 km) in the United States and extend northward into Canada for another 1,000 miles (1,600 km).
Answer:
The answer is territoriality.
Hope this helps :)
The answer is c there you go your welcome
