(sandy beach caused by erosion of the waves. The influence of the wave, also affect the changes in physical characteristics of the beach, which include The slope of the beach that is different in each place and seasonal, especially in warm region The influence of the wave, also affect the size of a grain of sand. Large sea animals live in sandy soil is important to living thingsMarine ecosystem, the abundance of marine animals in front of large land.Living in the sands can indicate the fertility of sandy beach.
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