"Who's this?"

Includes index.

Why do volcanoes erupt? -- Where are volcanoes? -- What happens when a volcano erupts? -- What kinds o foreparts are there? -- Why are volcanoes important? -- How old are volcanoes? -- Did we always understand volcanoes? -- Can life come back? -- Can we tell if a volcano is extinct? -- Are there volcanoes underwater? -- Are there volcanoes on other planets? -- How would you survive a volcanic eruption? -- Volcano facts -- Glossary -- Wart do you know about volcanoes? -- Index.