False. Volcanoes do not always pop up in groups. While it is true that volcanic activity is more commonly concentrated in certain geographic regions, such as the "Ring of Fire" around the Pacific Ocean, there are also many isolated volcanoes found in different parts of the world. Volcanic eruptions can occur as a result of movement of tectonic plates, which can create both individual volcanoes and volcanic arcs or chains. However, it is important to note that volcanic activity can also be influenced by other factors such as hotspot activity or localized geological conditions. Therefore, it is not accurate to say that volcanoes always appear in groups.
