Why does subduction occur?

Answer 1

Subduction happens when two tectonic plates collide. The earth's crust is made up of separate plates that 'float' on the mantle below. They are always moving, and when two move together, one will slide under the other. For instance, the subcontinent of India is colliding with the continent of Asia.

Answer 2

A subduction zone forms in response to a collision between two tectonic plates of certain types. The collision is between two oceanic plates or a continental plate colliding with an oceanic plate. The colder, more dense plate, is forced to move under the less dense plate (subduction), and flows into the layer of the mantle called the asthenosphere.

Answer 3

Subduction zones are regions where oceanic lithosphere descends into the asthenosphere. They occur because the subducting lithosphere has a greater density than the underlying asthenosphere.

Answer 4

because certain things happen to make it happen.

Answer 5

It occurs because if there were to much ocean floor the continents will collide

Answer 6

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