* Isostasy: The Earth's crust floats on the denser mantle below. High mountains, with their massive weight, push down on the mantle, causing the crust to sink deeper. This creates a thicker crust underneath the mountains to compensate for the extra weight.
* Mountain Formation: Mountains are often formed by tectonic collisions, where two plates push against each other. This pushing force causes the crust to thicken and buckle upwards, forming mountains.
In summary: High mountains are a result of a thicker crust, not the other way around.
