EVERYDAY SCIENCE

Detailed explanation-1: -A volcanic arc (also known as a magmatic arc ) is a belt of volcanoes formed above a subducting oceanic tectonic plate, with the belt arranged in an arc shape as seen from above. Volcanic arcs typically parallel an oceanic trench, with the arc located further from the subducting plate than the trench.

Detailed explanation-2: -Volcanic Island Arcs are formed at the margin of subduction zones. They are formed due to the partial melting of a subducting plate. They are also accompanied by trenches or deep depressions in the ocean. Subduction occurs due to the collision of two tectonic plates.

Detailed explanation-3: -Beneath the ocean, massive tectonic plates converge and grind against one another, which drives one below the other.

Detailed explanation-4: -ocean-continent subduction produces Andean-type volcanoes.

Detailed explanation-5: -Island arcs are long chains of active volcanoes with intense seismic activity found along convergent tectonic plate boundaries.