Vulcinarium
{"name":"Vulcinarium", "url":"https://www.quiz-maker.com/Q324GD18G","txt":"The bulk of a volcano is made of ash and ___________ material., A layer of magma that is beneath the surface and parallel to the ground is called a, Another word for secondary cone is a _________ cone.","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}