Question
How are jetties and groins similar in how they manage beach erosion?(1 point)
Responses
Both are hard structures that keep sand on the beach.
Both are hard structures that keep sand on the beach.
Both use vegetation to keep sand on the beach.
Both use vegetation to keep sand on the beach.
Both use beach nourishment to replenish sand on the beach.
Both use beach nourishment to replenish sand on the beach.
Both are soft alternative strategies that use barriers to keep sand on the beach.
Responses
Both are hard structures that keep sand on the beach.
Both are hard structures that keep sand on the beach.
Both use vegetation to keep sand on the beach.
Both use vegetation to keep sand on the beach.
Both use beach nourishment to replenish sand on the beach.
Both use beach nourishment to replenish sand on the beach.
Both are soft alternative strategies that use barriers to keep sand on the beach.
Answers
GPT-4o mini
The correct response is: **Both are hard structures that keep sand on the beach.**
Jetties and groins are both constructed mainly of hard materials to control coastal erosion by interrupting natural water flow and sediment movement, thereby helping to maintain sand on the beach.
Jetties and groins are both constructed mainly of hard materials to control coastal erosion by interrupting natural water flow and sediment movement, thereby helping to maintain sand on the beach.