| Assertion [A]: The circum-pacific belt is the most vulnerable zone of Tsunamis. |
| Reason [R]: It is tectonically most active area and generates weld's major earthquakes. |
A) Both A and R are true and R is the correct explanation of A.
B) Both A and R are true, but R is not the correct explanation of A.
C) A is true, but R is false.
D) A is false, but R is true.
Correct Answer: A
Solution :
Circum-Pacific belt or The Ring of Fire is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. In a 40,000 km (25,000 mi) horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and/or plate movements. It has 452 volcanoes (more than 75% of the world's active and dormant volcanoes). About 90% of the world's earthquakes and 81% of the world's largest earthquakes occur along the Ring of Fire. The next most seismically active region (5- 6% of earthquakes and 17% of the world's largest earthquakes) is the Alpine belt, which extends from Java to the northern Atlantic Ocean via the Himalayas and southern Europe.
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