state two cause volcanoes eruption and its
two advantages
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Although there are several factors triggering a volcanic eruption, three predominate: the buoyancy of the magma, the pressure from the exsolved gases in the magma and the injection of a new batch of magma into an already filled magma chamber. This lighter magma then rises toward the surface by virtue of its buoyancy.
Geothermal energy can be generated in areas where magma lies close to the surface. This is good for increasing our renewable energy use. Ash ejected by the volcano acts as a good fertiliser for soils. Volcanoes attract many tourists, who enjoy the dramatic scenery that they produce.
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