This is when lava, ash, and various gases are expelled from a volcanic vent or fissure.

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Geography

Ernest

8 September, 13:50

This is when lava, ash, and various gases are expelled from a volcanic vent or fissure.

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Danica Hood · Answer 1

This is a geologic event that occurs when tectonic plates are displaced violently. This is when lava, ash, and various gases are expelled from a volcanic vent or fissure. This is one type of igneous rock that has erupted from volcanoes or seafloor fissures, or freeze at shallow depths.