Are volcanoes spread evenly around the world?

No, volcanoes are not spread evenly around the world. They tend to be concentrated along tectonic plate boundaries, particularly at divergent and convergent boundaries where geological activity is more pronounced. The "Ring of Fire," encircling the Pacific Ocean, is a prominent example of this concentration, with numerous active volcanoes found in this region. Other areas, like mid-ocean ridges and hotspots, also host volcanic activity, but overall, their distribution is uneven.