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What is volcanicity?

User Renetik
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Description
Volcanism (or volcanicity) is the phenomenon of eruption of molten rock (magma) onto the surface of the Earth or a solid-surface planet or moon, where lava, pyroclastics and volcanic gases erupt through a break in the surface called a vent.
User JeffC
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Answer:The quality or state of being volcanic; volcanic activity. ... The level of power of a volcano.

Step-by-step explanation:

User Brcolow
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