The essential aspect of geography where one would learn about the creation of mountains would be the study of plate tectonics. Plate tectonics and the theory of continental drift or the theory on the movement of plates and land masses seeks to explain the phenomena of mountain creation and also how continents are moving around the planet.
In the essence of a mountain barrier or a mountain chain, the geographic principles would help us understand the growth, structure, and distribution across the world.
Mountains are a high rising cold desert topography that has been evolved with a <u>geologic setting of rocks of the earth's history and thus forms the divided between the countries.
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Formation of mountains on earth explains the geology of the landmasses that concluded to there formation as the carbon dating of rocks obtained can easily show us this evidence and help in explaining the primitive atmosphere of the plant.
<u>Mountains are a reservoir to freshwater and some of them containment deposits like oils and natural gas</u>.
Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be "a system of checks and balances", since this doesn't allow any branch to become too powerful.
