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Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from lava erupted from a volcano. ... Volcanic rocks and sediment that form from magma erupted into the air are called "volcaniclastics," and these are technically sedimentary rocks.
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El África subsahariana es la región del mundo q presenta actualmente la tasa de mortalidad más alta .
As a result of the geographic location of the region, virtually all Caribbean economies are susceptible to the dangerous forces of nature.
