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This was because part of the northward-moving African Plate is subducting beneath the Eurasian Plate. Trapped lava forms bubbles of gas as it gets near the surface. Pressure is released by coming to the surface. It bursts out as lava. Then layers build up to form the cone shape. There you go!

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16y ago
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12y ago

because it wants to be

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Q: How is magma formed in Mt Etna?
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