Which of the following effects do shifting shorelines from beach erosion have on beaches?
1. They cause an increase in beach currents.
2. They cause an increase in sand on beaches.
3. They cause wider beach areas.
4. They cause narrower beach areas.
1 answer
The correct answer is 4. They cause narrower beach areas. As beach erosion causes the loss of sand from the beach, the shoreline moves inland and the beach area becomes narrower. This can also result in steeper beach profiles and decreased beach width.