drag each phrase into the correct column for the beach erosion strategy it describes.

-jetty

-beach nourishment

-seawall

: brings in more sand to replace erosion |

| : : prevents erosion by directing waves
back to ocean

: : hard structure built perpendicular to shore

: : hard structure that also provides flood
protection || :

can cause sand buildup on updrift ide of structure

Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary