what is valcona means in english
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mountain with a hole (crater) at the top through which steam, hot melted rock (lava), fire, etc. sometimes come out
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A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Earth's volcanoes occur because its crust is broken into 17 major, rigid tectonic plates that float on a hotter, softer layer in its mantle
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