_______ are sometimes built perpendicular to shore in an attempt to protect beaches that are losing sand from longshore drift.

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Groins are structures that are built perpendicular to the shore in an attempt to trap sand that is being carried along the coast by longshore drift. The sand builds up on the up-drift side of the groin, creating a wider beach and protecting it from further erosion. Breakwaters are structures built offshore to absorb wave energy before it reaches the shore, inlets are natural waterways that allow ocean water to flow into bays and estuaries, tombolos are sandbars that connect an island to the mainland, and headlands are rocky outcroppings that jut out into the ocean.

_______ Are Sometimes Built Perpendicular to Shore in an Attempt