Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and upper mantle that fit together like puzzle pieces. Think of these plates as massive rafts floating ...
*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Q How do volcanoes form, and how did the volcano of Pompeii show up? — Andrew Vigliotta, Mount Horeb, Wis. A Clifford Thurber, ...
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