I showed up to the interview dressed to the nines, post double shot latte, and mentally prepped only to be ushered to a hallway lined with chairs and a dozen other potential applicants already waiting their turn. I knew I needed something to make me stand out if I had any chance of securing the job.
Answer 1: At plate boundaries where sea-floor spreading occurs, magma wells up to fill the space created by the plates that are moving apart. Check out this United States Geologic Survey (USGS) educational animation to see visually how it works:
Sea wall is the structure that is built parallel to the shore that shields the coast from breaking waves. The sea walls are created to stop the brute force of the incoming waves that can destroy any structure in its path. The buildings near the shoreline would also get damaged if there were no sea walls. Comments.