Describe and give one reason for the global distribution of volcanoes.

Volcanoes are most commonly found along destructive plate margins, they also occur at constructive and conservative plate margins. Additionally some are also found away from margins, e.g Hawaii, these are known as hotspots. At destructive margins the oceanic plate moves down into the mantle and melts, forming magma. The magma rises through the cracks in the crust, known as vents, and erupts at the surface forming a volcano.

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