This page discusses volcanoes, primarily located at convergent and divergent plate boundaries, particularly around the Pacific Ocean's Ring of Fire. Eruptions result from melting mantle rock and vary ...This page discusses volcanoes, primarily located at convergent and divergent plate boundaries, particularly around the Pacific Ocean's Ring of Fire. Eruptions result from melting mantle rock and vary based on magma composition, impacting the environment. They can be effusive or explosive, with supervolcanoes like Yellowstone posing significant threats.