Let's Get to Know The Earth :)
When you ask, "how can nature be so beautiful?" then you need to read this page.
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Volcanoes are cavities or fissures in the earth's crust from which liquid flows out magma, gas, cold lava, sand, large rocks, and other volcanic materials to the earth's surface. Material that is erupted into the earth's surface generally forms a truncated cone.
Volcanoes are formed in four arcs, namely, the central arc of the continent, formed as a result of the division of continental crust; the continental margin arc, formed by the subduction of oceanic crust into continental crust; mid-ocean arc, caused by the expansion of the oceanic crust; and the bow of the ocean floor that occurs as a result of the breakthrough of alkaline magma in the thinning of the oceanic crust.
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