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- Dictionaryvolcano/vɒlˈkeɪnəʊ/
noun
- 1. a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapour, and gas are or have been erupted from the earth's crust.
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A volcano is a landform, a mountain, where molten rocks erupt through the surface of the planet. The volcano mountain opens downwards to a pool of molten rocks underneath the surface of the earth. Pressure builds up in the earth’s crust and this is the reason why eruptions occur.
- 5 min
- A volcano mountain is formed by the surface eruption of magma from within the earth’s upper mantle. The magma that erupts to the surface forms a la...
- These are grouped into four types: Cinder cones Composite volcanoes Shield volcanoes Lava volcanoes
- Active Volcanoes: A volcano will be classified as an active volcano if at the present time it is expected to erupt or is erupting already. Dormant...
- A shield volcano is a type of volcano usually built almost entirely of fluid lava flows. They have very gentle slopes and are developed horizontall...
6 days ago · A volcano is an opening on the surface of a planet or moon that allows material warmer than its surroundings to escape from its interior. Learn about the types, causes, and examples of volcanoes on Earth and other planets in our solar system.
22 hours ago · A volcano is a vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases. Learn about the different types of volcanoes, their formation, and their effects on Earth's surface and atmosphere.
A volcano is a rupture in the crust of a planetary-mass object that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Learn about the different types of volcanoes, such as divergent, convergent, hotspot and rifting, and see examples from Earth and other celestial bodies.
A volcano is an opening in the earth’s crust through which lava, volcanic ash, and gases escape. Learn about different types of volcanic eruptions and how they are driven by pressure and composition of magma.
Oct 19, 2023 · A volcano is an opening in a planet or moon’s crust through which molten rock and gases erupt. Learn about the types, causes, and effects of volcanic eruptions, and see examples of volcanoes on land and underwater.
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Jan 15, 2018 · Learn about the formation, types, dangers, and history of volcanoes, Earth's geologic architects. Find out how volcanoes are related to tectonic plates, hotspots, and the ring of fire.
