Volcanoes are gorgeous, and yet can be very destructive when they erupt. In numerous instances throughout history, volcanoes have spewed a lethal mix of ash and rain to surrounding cities. If you live near a volcano, and it is showing signs of unrest, you better run! These magnificent creations of nature are scary by default. They are notorious for their destructive capabilities, and there are only a few natural forces that can match their pure, awesome power. But they aren't all bad. Think of it this way \u2014 volcanic eruptions spread ash over a wide area. This ash contains varying levels of soil nutrients depending on the composition of the magma from which it erupted. While the most abundant elements in magma are silica and oxygen, eruptions also result in the release of water, sulfur dioxide (SO\u00b2),\u00a0 carbon dioxide (CO\u00b2), hydrogen sulfide (H\u00b2S), and hydrogen chloride (HCl), among others. In addition, volcanoes have done incredible things for us by helping to cool off Earth's excess interior heat. Imagine what would happen if that excess interior heat never had an outlet? Did you know, in Naples, Italy there are fertile stretches of land created by volcanic eruptions? The soil in that region is rich because of minerals from a volcanic eruption, minerals broken and weathered down by rain. Once absorbed by the soil, they became a steady supply of nutrients for plant life in that area. Isn't that amazing? If you liked the volcano facts we shared here, you'd be glad to know there is more where that came from. Check out the comprehensive list we've made of the top 50 cool volcano facts.