The term LIKE SOME VOLCANOES can be broken down into three crossword solutions: INACTIVE (8 letters), UNDERSEA (8 letters), and ACTIVE (6 letters). Volcanoes are mountains that form when molten rock, ash, and gases erupt from the Earth's surface. INACTIVE volcanoes are those that have not erupted in a long time and are not expected to erupt again in the near future. Underea volcanoes are those that are located beneath the ocean's surface and are usually formed by the movement of tectonic plates. ACTIVE volcanoes are those that are currently erupting or have recently erupted and are considered to be dangerous.