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  1. www.britannica.com › science › volcanoVolcano | Definition, Types, & Facts | Britannica

    13 de may. de 2024 · Volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases. The term volcano can also refer to the landform created by the accumulation of solidified lava and volcanic debris near the vent.

  2. www.nationalgeographic.org › encyclopedia › volcanoesVolcanoes - National Geographic Society

    19 de oct. de 2023 · A volcano is an opening in a planet or moon’s crust through which molten rock, hot gases, and other materials erupt. Volcanoes often form a hill or mountain as layers of rock and ash build up from repeated eruptions. Volcanoes are classified as active, dormant, or extinct.

  3. spaceplace.nasa.gov › volcanoes2 › enWhat Is a Volcano? | NASA Space Place – NASA Science for Kids

    6 de may. de 2024 · 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. When this material escapes, it causes an eruption. An eruption can be explosive, sending material high into the sky.

  4. chis.nrcan.gc.ca › volcano-volcan › volcano-volcanWhat is a volcano?

    What is a volcano? an erupting volcano. A volcano is an opening in the earth’s crust through which lava, volcanic ash, and gases escape. Volcanic eruptions are partly driven by pressure from dissolved gas, much as escaping gases force the cork out of a bottle of champagne.

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  6. en.wikipedia.org › wiki › VolcanoVolcano - Wikipedia

    A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.

  7. definicion.de › volcanVolcán - Qué es, definición, ejemplos y tipos

    Volcán es un conducto que establece comunicación directa entre la superficie terrestre y los niveles profundos de la corteza terrestre. Los volcanes son aberturas que se encuentran en montañas o en la tierra; cada un cierto periodo de tiempo, expulsan lava, gases, cenizas y humo.

  8. www.nationalgeographic.org › topics › resourceVolcano - National Geographic Society

    A volcano is defined as an opening in Earth's crust through which lava, ash, and gases erupt. The term also includes the cone-shaped landform built by repeated eruptions over time. Grades. All. Subjects. Earth Science, Geology. video. Hawai'i Geology. Earth Science, Geology, Oceanography, Geography.