Approximately how much volcanic rocks forms annually at subduction zones? A)0.1 km³ B)1 km³ C)20 km³ D)100 km³

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Subduction zones are areas where two tectonic plates collide and one slides beneath the other, leading to the melting of mantle material and the formation of magma. This magma can rise to the surface and form volcanic rocks. The amount of volcanic rock formed annually at subduction zones is estimated to be about 1 cubic kilometer. This accounts for a significant portion of the new crust formed on Earth each year.

Approximately How Much Volcanic Rocks Forms Annually at Subduction Zones