Question

why volcanoes erupt?​

Answer 1

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Answer 2

Answer:

Volcanoes erupt when molten rock called magma rises to the surface. Magma is formed when the earth's mantle melts

Explanation:

Some volcanic eruptions are explosive and others are not. The explosivity of an eruption depends on the composition of the magma. If magma is thin and runny, gases can escape easily from it. When this type of magma erupts, it flows out of the volcano. A good example is the eruptions at Hawaii’s volcanoes