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Benefits of Volcanic Eruptions Volcanic eruptions present various dangers to humans and to wildlife habitats. But volcanoes also provide benefits to humans and to the environment. These benefits include fertile soils, a renewable energy source, and construction materials.ey Concept The effects of volcanic eruptions can change human and wildlife habitats. â¢ Volcanic eruptions can cause the loss of human life and the devastation of wildlife habitats. â¢ Volcanic eruptions can cause the average global temperature of Earth to decrease.
silicas, acids. The main good effect that volcanoes have on the environment is to provide nutrients to the surrounding soil. Volcanic ash often contains minerals that are beneficial to plants, and if it is very fine ash it is able to break down quickly and get mixed into the soil.Therefore, towns grow around volcanoes, and use the fertile soil to grow crops and food.The slopes of volcanoes and the surrounding regions are covered with rich, volcanic soil. For example, most of Italy has poor soils with bare limestone rock.herefore, towns grow around volcanoes, and use the fertile soil to grow crops and food. The slopes of volcanoes and the surrounding regions are covered with rich, volcanic soil. For example, most of Italy has poor soils with bare limestone rock.