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Volcanic eruptions can be violent events that can cause significant physical changes. Eruptions can be accompanied by landslides, which can change the physical appearance of an area. Lakes and other bodies of water can be dammed up or displaced entirely. Rock and ash can cover whole regions, changing their appearance. The summit of the volcano can either decrease as a result of huge amounts of rock exploding outward; or it can grow in height as a result of more material being piled up.

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12y ago

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