Here's a breakdown:
* Magma: Molten rock found beneath the Earth's surface.
* Volcano: A vent in the Earth's crust through which magma erupts.
* Volcanic Mountains: Mountains formed by the accumulation of lava, ash, and other volcanic materials erupted from a volcano.
When magma rises to the surface, it erupts as lava, ash, and gases. This material builds up over time, creating a cone-shaped mountain, which is a volcanic mountain.