Question

Discuss the concept of volcanicity and show how the theory of plate tectonics explains the mechanism of volcanism and volcanic eruptions.

Answer 1

Answer:

Volcanism 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. It includes all phenomena resulting from and causing magma within the crust or mantle of the body, to rise through the crust and form volcanic rocks on the surface.

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