Bing found the following results
Volcano | Definition, Types, & Facts | Britannica
Volcano - Wikipedia
Volcanoes - National Geographic Society
Volcano facts and information - National Geographic
Global Volcanism Program | Current Eruptions
Volcano facts and types of volcanoes | Live Science
What Is a Volcano? | NASA Space Place – NASA Science for Kids
About Volcanoes | U.S. Geological Survey - USGS.gov
What made Guatemala’s Fuego Volcano eruption so deadly?
What is a volcano?