What are the different types of seafloor sediments and what arethe factors that

What are the different types of seafloor sediments and what arethe factors that control the distribution of each major seasediment type? Where does each major seafloor sediment type tend toaccumulate in greatest quantity?A variety of techniques and efforts are used to stabilizeshorelines throughout the world. Discuss these techniques. Are theytemporary or permanent? Also discuss at least two ways in whichthe development of coastal areas contributes to shoreline erosion?(Hint: think about rivers and what they contribute to our beaches.Also what increases with the creation of roads and rooftops?)