A volcano is a geological landform (usually a mountain) where magma (rock of the Earth's interior made molten or liquid by extremely high temperatures along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of the planet. |
•owl:Thing |
•SpatioTemporalThing |
•Endurant |
•PhysicalEndurant |
•PhysicalObject |
•NonAgentivePhysicalObject |
•PhysicalPlace |
•PlanetaryStructureObject |
•GeomorphologicalUnit |
•TerrainLandForm |
•Volcano |