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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.
Volcanoes form when magma reaches the Earth's surface, causing eruptions of lava and ash. They occur at destructive (compressional) and constructive (tensional) plate boundaries. The immediate effects of volcanic eruptions can be devastating, but they may be beneficial in the long term. ] reaches the Earth's surface it is called lava. 2  When the lava cools, it forms rock. 3  Volcanic eruptions can happen at destructive [destructive boundaries: The boundary of two plates which are moving towards each other.