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Volcano | Definition, Types, & Facts | Britannica
Volcanic eruption | Description, History, Mythology, & Facts
Volcanism | Examples, Effects, & Facts | Britannica
Volcano - Eruptions, Types, Magma | Britannica
Volcanology | Eruptions, Magma, Lava | Britannica
volcano - Students | Britannica Kids | Homework Help
Volcano - Eruptions, Cone, Magma | Britannica
volcano - Kids | Britannica Kids | Homework Help
Volcano - Calderas, Magma, Eruptions | Britannica
What Causes a Volcano to Erupt? | Britannica