There are many positive effects of volcanoes including: Fertile soils, tourism, geothermal energy, creation of new land and building materials. Volcanic soils are very fertile. These rich soils are called laterite soils and are rich in minerals.
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Major health threats from a volcanic eruption
Health concerns after a volcanic eruption include infectious disease, respiratory illness, burns, injuries from falls, and vehicle accidents related to the slippery, hazy conditions caused by ash.
