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INTERESTING FACTS ABOUT VOLCANOES
The term volcano originated from the name Vulcan, the Roman god of fire. A volcano forms when there is a rupture or natural occurring opening in the Earth’s crust that allows melted rock called magma, volcanic ash, and gases to escape from below the surface.
Many people think of conical mountains with lava flowing down its sides when the term volcano comes to mind. However, this is only one of several types of volcanoes that exist. Composite or strato volcanoes form between alternating layers of lava and rock fragments and they form into various types of shapes including large conical, concave, pyramidal, convex-concave, helmet-shaped, collapsed, nested, elongated, and even some with multiple summits.
Shield volcanoes consist almost entirely of lava...