What is the difference between a young and an old mountain?

Answer

One of the primary differences between young and old mountains is the height. Young mountains tend to be taller than old mountains because of a lack of erosion.

Mountains are created through a variety of causes, but older mountains are exposed to elements such as wind, rain and heat over a longer period than younger mountains. The combination of the effects of these elements is called erosion. Through erosion, soil and rock are removed and deposited elsewhere. Eroded mountains may have no currently visible surface traces, while younger mountains tend to still appear tall and rugged.

Older mountain ranges date in age to over 200 million years, while younger mountain ranges date to between 10 and 25 million years.

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