A scientist wants to study the formation of a volcano. What processes lead to the creation of a volcano?

Answer: A. Plate tectonics and mantle upwellings

The formation of most volcanoes is driven by the movement of Earth's tectonic plates. This happens at convergent boundaries (where one plate sinks beneath another) and divergent boundaries (where plates move apart). Additionally, mantle upwellings (mantle plumes) create "hotspots" that form volcanoes far from plate boundaries, such as those in Hawaii.

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