How dids a volcaneoe beggin?

A volcano begins when magma from deep within the Earth's mantle rises to the surface through cracks in the Earth's crust. This process is often triggered by tectonic activity, such as the movement of tectonic plates. As magma accumulates in a magma chamber, pressure builds until it eventually erupts through the surface, creating a volcanic eruption. Over time, repeated eruptions can lead to the formation of a volcanic structure.