Which roman city was buried under ash?

How many times greater was the Krakatoa eruption than the world's mos powerful atomic bomb?

What planet has the solar systems tallest volcano?

Where is the world's tallest volcano?

Which National Park is on top of a giant volcano?

Which ocean is surrounded by the "Ring of Fire", a huge chain of volcanoes

What is the opening that extends from the magma chamber to the top of the volcano called?

Lightning can shoot out of an erupting volcanoes.

Volcanoes can cause floods.