Hazards and Disasters


What are volcanoes

Volcanoes are the result of magma rising or being pushed to the surface of the Earth. Hot liquid magma, which is located under the surface of the Earth, rises through cracks and weak sections of rock. The mountain surrounding a volcano is formed by lava (called magma until it arrives at the Earth’s surface) that cools and hardens, making the volcano taller or wider or both.


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