Respuesta :

Answer:

Subduction of 'oceanic lithosphere' at the trenches can act like a 'bulldozer' to produce an accretionary wedge.

Explanation:

  • The action of subduction subsequently results in a gradual layering up of material on 'both sides of the plate'.
  • This process of layering up of the material from the plates is called as accretion.
  • When a lighter plate undergoes subduction, it not only subducts but also lifts up the other plate to a certain extent.
  • This action directly results in the formation of an 'accretionary wedge'.

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