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Presents an up-close look at these fiery formations, detailing how they form and what causes them to erupt. Explains the difference between magma and lava and the characteristics that enable volcanologists to classify a volcano as cinder cone, shield or composite. Examines the anatomy of an active volcano. Discusses historical eruptions that have left a mark on our planet. Demonstrates how a tilt meter is used to predict when a volcano might erupt...