are there any oceanic landforms that are unexplained? , geology question help

Need 400 wordsNow that you have learned much about the theory of Plate Tectonics, are there any oceanic landforms that are unexplained? What is responsible for the formation of Barbados? How about the Ninetyeast Ridge in the Indian Ocean? Why does Bermuda exist? Do some quick research on one of these and share your discoveries.