Final answer:
The volcanoes in the "Ring of Fire" were formed as a result of subduction zones.
Step-by-step explanation:
The volcanoes in the "Ring of Fire" were formed as a result of subduction zones. In subduction zones, one tectonic plate moves beneath another, causing the crust to melt and form magma. This magma eventually rises to the surface and forms volcanoes.
For example, the volcanoes in the Ring of Fire, such as Mount St. Helens in the United States and Mount Fuji in Japan, are located along subduction zones where the Pacific Plate is subducting beneath other plates.
Subduction zones are characterized by intense volcanic activity and frequent earthquakes due to the collision and interaction of tectonic plates.
Learn more about Volcanoes