Isabel Gonzalez asked 3/5/2007 What Dangers Does A Volcanic Eruption Of The Type Found In Island Arcs Pose To People Who Live Within 25 Kilometers (15 Miles) Of The Volcano?
Anonymous asked 2/4/2008 If Volcanoes Get Their Magma From The Crust Below Them, What Can You Say About The Silica Content Of Earth's Crust Under The Oceans?