What are the steps in a volcano's eruption?

Answer

A volcano erupts through a series of steps; first it forms the magma from molten rock, which is then pushed up the vents. Then it turns to lava while it ascends in the vents and eventually spills over at a high pressure releasing ash, rocks and a cloud of thick dust.
Q&A Related to "What are the steps in a volcano's eruption?"
a volcano erupt because it needs oxygen so it gets out.
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