WATCH: How does a volcano explode?

Have you ever wondered exactly how a volcano explodes?

Magma flows 2900 km below the earth’s surface. Cracks in the earth’s crust allows magma to rise closer to the surface, creating magma chambers.

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When these chambers are full, magma climbs up vents of the volcano. Gasses then build up and create volcanic explosions.

While volcanoes are dangerous, they play a vital role on earth.

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