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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.
A: Volcanoes affect the hydrosphere in many ways, such as promoting rainfall. After a volcano erupts, condensation forms around the dust particles it expells, causing rain. This in turn promotes growth of plants in the biosphere. An eruption can cause glaciers to melt, which flow into rivers and feed the biosphere. Another volcanic effect occurs when sulfuric acid from the eruption combines with rain in the hydrosphere. When this acid rain reaches the surface of the Earth, it pulls minerals from the soil, which not only deprives the soil of valuable nutrients but increases the acidity of the water and affects those animals that can live in it.