Question

Explain the origin of a volcano

Answer 1

Answer:A volcano begins to form when magma, which is hot molten rock from deep within the earth, rises toward the earth's surface and collects in magma chambers. As pressure builds within these chambers, magma is expelled through a vent or fissure in the earth's surface as a volcanic eruption.

Explanation:

Answer 2

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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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