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:
Divergent plate boundaries. One young divergent plate boundary that you'll recognize is actively forming the Red Sea. Although the Arabian penninsula and Africa were once linked to form a single continent, they are now being ripped apart. The white arrows show the directions the two plates are moving.You can see that a new ocean, the Red Sea is being formed as they separate.he weaknesses between the diverging plates fill with molten rock from below. Sea water cools the molten rock, which quickly solidifies, forming new oceanic lithosphere. This continuous process builds a chain of volcanoes and rift valleys called a mid-ocean ridge or spreading ridge.