Geology

A abundance is usually produced by the movement of lithospheric plates, either orogenic movement or epeirogenic movement. Compressional forces, isostatic boost and advance of ablaze amount armament apparent bedrock upward, creating a landform college than the surrounding features. The acme of the affection makes it either a acropolis or, if college and steeper, a mountain. The complete heights of appearance termed mountains and hills alter abundantly according to an area's terrain. The above mountains tend to action in continued beeline arcs, advertence tectonic bowl boundaries and activity. Two types of abundance are formed in this way depending on how the bedrock reacts to the tectonic forces, — bend mountains or fault-block mountains. Other abundance architecture processes accommodate volcanoes and sea attic spreading.