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| Q. |
Where are most of the earth's active volcanoes concentrated? |
| A. | Europe |
| B. | Pacific Occan |
| C. | Africa |
| D. | South America |
| Answer» B. Pacific Occan | |
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Explanation: The Pacific Ring of Fire is an area where a large number of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In a 40,000 km horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and/or plate movements. The Ring of Fire has 452 volcanoes and is home to over 75% of the world’s active and dormant volcanoes. It is sometimes called the circum-Pacific belt or the circum-Pacific seismic belt. About 90% of the world’s earthquakes and 81% of the world’s largest earthquakes occur along the Ring of Fire. |
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