How do mountains form?

Answer 1

by tectonic plates moving head to head over each other

Answer 2

There are several different ways how mountains form.

Fault-block mountain:
If a fault exists in which one rock mass is moving up, and the other is stationary, or moving down, then the upward moving rock mass will form a mountain which rises up from the stationary or downward moving rock The Sierra-Nevada mountains in California are fault-block mountains.

Folded mountains:
When two moving plates push up against each other with extreme force, the crust can bend in an up and down, rolling pattern.

Volcanic mountains:
These mountains form when a hole is torn in the earth's crust. When this happens, plastic rock from the mantel rises up through the hole. The rock from the mantel is hot enough to melt, but the extreme pressure from the mantel keeps the rock in its solid form. When the rock is released from the mantel, a large amount of that pressure goes away, and the rock is free to liquefy, forming molten rock, or magma. This magma pushes against the crust of the earth. When this happens, the crust heaves upwards, forming a mountain. The crust can crack, forming a vent through which the magma can escape, and the result is a volcano. Mount St. Helens in southwestern Washington state is a volcanic mountain.

Domed mountain:
Sometimes, magma escapes from the mantel of the earth, but does not travel directly upwards. Instead, it flows underground. When this happens, the overlying rock is still pushed upward, but a vent is not formed. Thus, the magma is never released, and a volcano doesn’t form. Because the rock is pushed upwards, a mountain that often looks similar to a volcano is formed. Domed mountains are typically rounder and more sloping than a volcanic mountain. The Black Hills in South Dakota are domed mountains.

I hope this helps! =)

Answer 3

Stresses on the Earth's crust cause lateral movement, the only direction for this energy to go is up so mountains are formed and continue to grow.

Answer 4

They are formed when earth plates overlap over each other

Answer 5

All of Above.