A volcano is an opening in the Earth's outermost layer (crust) through which hot gases and molten material, from Earth's interior, emerges out. A volcano consists of a number of parts and a brief description of these components is presented here:
- Magma chamber: Magma is molten rock, present underneath the surface of Earth. A magma chamber is an underground reservoir of pressurized magma waiting to get released above the surface of the planet.
- Conduit: The passage through which the hot magma and gases reach the planet's surface.
- Throat: The opening of the volcano from which the magma comes out. It is the upper part of a volcano.
- Vent: Crack or rupture in Earth's surface from which hot magma and gases escape to the surface.
- Crater: The mouth of the volcano. It is formed around the main vent.
- Flank: The side of a volcano is known as the flank.
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