GK
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It involves two oceanic plates colliding.
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It involves an oceanic plate moving beneath a continental plate.
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It involves two continental plates colliding.
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It involves a continental plate moving beneath an oceanic plate.
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Detailed explanation-1: -When an oceanic plate converges with a continental plate, the oceanic crust will always subduct under the continental crust; this is because oceanic crust is naturally denser. Convergent boundaries are commonly associated with larger earthquakes and higher volcanic activity.
Detailed explanation-2: -Subduction of an oceanic plate beneath a continental plate forms a line of volcanoes known as a continental arc and causes earthquakes. As you would expect, where plates collide there are lots of intense earthquakes and volcanic eruptions. The subducting oceanic plate melts as it reenters the mantle.
Detailed explanation-3: -When a continental plate collides with an oceanic plate, the oceanic plate crust subducts beneath the continental crust due to its high density and its higher specific gravity, thus forming a subduction zone. In the subduction zone, the subducted plate melts, forming magma, then moving upwards, creating a volcano.