VLC Britannica Abbreviation

Volcano

 a hill or mountain that forms around a volcanic vent and that consists of cooled lava, rock fragments, and dust from the eruptions. An opening in a planet's crust that allows magma to reach the surface. A naturally occurring vent or fissure at the Earth's surface through which erupt molten, solid, and gaseous materials. Volcanic eruptions inject large quantities of dust, gas, and aerosols into the atmosphere.