New islands formed by volcanic action may eventually be inhabited by biotic communities because volcanism can make the soil fertile, and provide mineral resources. Renewable energy sources, recreation, and tourism areas, also produce volcanic rocks.
Volcanic eruptions are events that occur due to magma deposits in the bowels of the earth, which are pushed out by high-pressure gas. Magma is an incandescent liquid that is found in the earth's layers at very high temperatures, which are estimated to be more than 1,000 °C.
Hot rock in the bowels of the melted Earth is called magma. While magma that comes out of a volcano when it erupts is called lava. If the magma is liquid, the resulting lava will flow rapidly over the surface of the mountain slopes.
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