Respuesta :
Answer:
Volcanoes are formed when magma from within the Earth's upper mantle works its way to the surface. At the surface, it erupts to form lava flows and ash deposits. Over time as the volcano continues to erupt, it will get bigger and bigger.
Explanation:
Answer:
Volcano Formation via Plate Tectonics The earth’s crust is composed of enormous sections of rock called tectonic plates. Tectonic plates resemble puzzle pieces and are constantly moving toward, against, and alongside one another. Volcanoes often form in the areas where tectonic plates make contact.
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