| [ A ] Beaufort scale |
|
| [ B ] Richter scale | ![]() |
| [ C ] Secant scale | |
| [ D ] Mercalli scale |
| [ A ] Beaufort scale |
|
| [ B ] Richter scale | ![]() |
| [ C ] Secant scale | |
| [ D ] Mercalli scale |
| Answer : Option B |
| Explanation : |
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