Why Do Volcanoes Erupt Step By Step. The explosivity of an eruption depends on the composition of the magma. When a volcano erupts, the magma becomes lava and shoots into the air,.
Introduction to volcanoes! - image credit : pt.slideshare.net
to understand how a volcano erupts, we'll first need to take a look at the structure of the earth. Magma is formed when the earth's mantle melts. volcanoes spew hot, dangerous gases, ash, lava, and rock that are powerfully destructive.
Introduction to volcanoes!
Volcanoes erupt when molten rock called magma rises to the surface. Melting may happen where tectonic. It can be used to demonstrate the effects of volcanic eruptions. volcanologists classify a volcano’s eruptions by its type and qualitative standards, as each volcano type behaves differently.
