What conclusion did the researchers from the University of California SanDiego reach regarding the best type of material to use for beach nourishment

Boulders should be placed near the water’s edge to prevent the current from taking the new sand out to the ocean
Sandy areas of a beach should alternate with cement areas to prevent erosion
Sand mixed with soil should be used to promote plant growth and prevent erosion
Large coarse grains of sand should be used since they remain on the beach longer

1 answer

The researchers from the University of California San Diego concluded that large coarse grains of sand should be used for beach nourishment since they remain on the beach longer. This finding suggests that using coarser sand can help mitigate erosion more effectively compared to finer sand.