Discover the top-ten most dangerous volcanoes on earth--and what makes them so explosive The new Top Ten series presents a wide range of subjects to children in a way that plays off their innate sense of excitement and curiosity. Most Explosive Volcanoes presents a countdown of volcanoes from around the world ranked from 10 down to 1. The types of volcanoes, the structure of a volcano, types of eruptions, and volcanic rock are...