Volcanic Eruptions!!!

A volcano is generally any place on the planet where some material from the inside of the planet (magma) makes its way through to the planet's surface. When this happens, it is a volcanic eruptions. There are two types of eruptions, one is the explosive type where the volcano bursts open and lava shoots from it, the other is where the lava slowly oozes out. The volcanos erupt because the internal pressure has built up far too much and it needs to be released somehow.