How do both jetties and seawalls help manage beach erosion?(1 point) Responses Both bring sand to the beach from offshore. Both bring sand to the beach from offshore. Both provide flood protection in the event of high waves. Both provide flood protection in the event of high waves. Both use plants to help keep sand on the beach. Both use plants to help keep sand on the beach. Both are hard structures that reduce erosion caused by waves
and currents. Both are hard structures that reduce erosion caused by waves and currents. Both help to trap sand and prevent it from being washed away by waves. Both help to trap sand and prevent it from being washed away by waves.
