Question

How do both jetties and seawalls help manage beach erosion? (1 point)

• Both use plants to help keep sand on the beach.

Both provide flood protection in the event of high waves.
• Both bring sand to the beach from offshore.

Both are hard structures that reduce erosion caused by waves.

Answer 1

[AI-generated answer — Bot GPT 3.5]

Both jetties and seawalls are hard structures that are designed to reduce erosion caused by waves. Jetties are built perpendicular to the shore and help trap sand, preventing it from being washed away by currents. Seawalls are vertical or sloping structures built along the shoreline to absorb the energy of waves and protect the beach from erosion. Both help manage beach erosion by providing a barrier against the erosive forces of the water.