Volcano
A volcano is an opening in a planet's crust through which molten rock, gas, and ash erupt from the hot interior to the surface. On Earth they are…
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A volcano is an opening in a planet's crust through which molten rock, gas, and ash erupt from the hot interior to the surface. On Earth they are…
An earthquake is a sudden shaking of the ground caused by the release of energy deep within the Earth. Most are too faint to feel, but the largest…