==Tektonik tabaka hareketleri==
Dağların arasında [[tektonik plato]] etkileşimleri olmuş olabilir. Örneğin, [[Asya]]'daki [[Himalayalar]], Hint plakasının Asya plakasına baskı yapması sonucu oluşan çatlaklardır.
Singular mountains are often the result of [[volcanism|volcanic]] processes but, in some instances such as the [[Hawaii|Hawaiian Islands]], these processes can result in a chain of mountains that might be considered a mountain range.
Uplifted regions or volcanic caps can undergo erosion, resulting in a range of mountains. An example is the [[English Lake District]]. Mountain streams carry eroded debris downhill and deposit it in [[alluvial plain]]s or in [[River delta|deltas]]. This forms the classical geological chain of events, leading to one type of [[sedimentary rock]] formation: [[erosion]], [[Transportation (sediment)|transportation]], [[Deposition (sediment)|deposition]] and [[compaction]].
Mountains are one of the factors which influence climate. They very significantly affect rainfall. When wind moves over the sea, the warm moist air rises and cools to form orographic rainfall. Then the cool dry air moves over the ridge to the leeward side.
It also affects the temperature. If the sun is shining from the east, then the eastern side of the mountain will get the sun but the other side will be in shade.
Mountain ranges can support different terrestrial [[biome]]s, at varying altitudes: at the bottom, they may have [[grassland]], then a [[coniferous forest]] or [[boreal forest]], then [[tundra]] at the top.