How do the different spheres of Earth interact? Volcanic eruptions are natural phenomena in the a) atmosphere b) geosphere c) hydrosphere . They sometimes erupt, spilling out lava and dust. The lava solidifies, forming new landmasses. Volcanoes can have an effect on the a) biosphere b) geosphere c) hydrosphere. When plants and animals are threatened by an eruption. Volcanic ash and gas can also pollute the. A) atmosphere b) biosphere c) hydrosphere. , resulting in acid rain and other unfavorable weather patterns.
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