14 facts about lava
Lava is molten material from the Earth's interior (magma) that has escaped to the surface.It is not identical to magma, its composition is slightly di ...
Mount St. Helens is a stratovolcano located in North America. It is a part of the Pacific Ring of Fire, and the Cascade Volcanic Arc. It is associated with one of the largest eruptions that occurred in the 20th century.