How are mountains formed ?
Mountains are formed when a layer of the Earth’s crust is pushed or forced up in big folds or blocks. Mountains are slowly formed over the course of millions of years. However, none are the same to one another. Some types of mountains are fold, block, dome and volcanic mountains such as stratovolcanoes. Because mountains are constantly being eroded (which is when stuff break off parts of the mountains) mountains are jagged. The weather easily wears away the rocky surfaces.
Block mountains are formed by the movement of large crustal blocks when forces in the Earth’s crust pull or push it apart. Some parts of the Earth are pushed upward and others collapse down. The surface of the Earth can move along these faults, and displace rock layers on either sidea.
A brilliant information page on mountains and how they are formed. Great use of subheadings and pictures.