• Shores are attractive places to live and vacation, but development at the shore is at risk of damage from waves.
  • Wave erosion threatens many homes and beaches on the ocean.
  • People build several types of structures to protect beaches.
  • A groin stops the longshore movement of sand.
  • Seawalls and breakwaters are built parallel to the shore.
  • Groins are built perpendicular to theshore.
  • They trap sand.
  • This reduces beach erosion.
  • This is the two methods to slow down coastal erosion.
  • Use the resource below to answer the questions that follow.
Select from the frequently asked questions below