Activity 3: Barrier Islands Trhough barrier islands, coastlines and other inland towns are protected from natural phenomene. Provide your own advantages and didadvantgaes of barrier islands. (make your own)
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subject: Earth and life science
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subject: Earth and life science
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Seawalls, groins, jetties and other shoreline stabilization structures have had tremendous impacts on our nation's beaches. Shoreline structures are built to alter the effects of ocean waves, currents and sand movement. They are usually built to "protect" buildings that were built on a beach that is losing sand. Sometimes they are built to redirect rivers and streams. Other times they are constructed to shelter boats in calm water. In many cases, seawalls, jetties, breakwaters and groins have caused down-coast erosion problems with associated costs that have greatly exceeded the construction cost of the structure.
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