Which vast geographical area is characterized by a high concentration of active volcanoes and frequent earthquakes, largely encircling the Pacific Ocean?

💡 Explanation:

The Pacific Ring of Fire is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. It is home to over 75% of the world's active and dormant volcanoes and is responsible for approximately 90% of the world's earthquakes.