Frothy magma ejected under high pressure from a narrow vent is most characteristic of which type of volcano?

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Quizplus · Accepted Answer

The frothy magma ejected under high pressure from a narrow vent is most characteristic of cinder cone volcanoes. These volcanoes typically have a steep conical shape and are formed by explosive eruptions of gas-rich lava that produce ash, cinders, and other pyroclastic materials. Stratovolcanoes also produce explosive eruptions, but they have a more gradual slope and are typically associated with subduction zones. Shield volcanoes, on the other hand, are characterized by gentle eruptions of fluid lava that spread out in all directions, and calderas are large crater-like depressions formed by the collapse of a volcano's summit. Hotspots are areas of volcanic activity that occur away from tectonic plate boundaries.

Frothy Magma Ejected Under High Pressure from a Narrow Vent