They're covered by sedimentary rock .
Hope this helps :) !!
Be more specific, in order to answer this question.
This is true, Columbus came to the new world in 1492, and from then on, more people migrated to the new world.
The answer is True.
Many people doubt it because it's just sound too fictional.
Ring of fire located in the basin of pacific ocean, a large number of earthquake and volcano eruptions happen here.
The island arc is a string of islands formed by volcanoes along deep ocean trench.
Hope it helps
