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| Q. |
An instrument that records earth- quakes is – |
| A. | Ergograph |
| B. | Ediograph |
| C. | Thermograph |
| D. | Seismograph |
| Answer» D. Seismograph | |
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Explanation: Earthquakes generate seismic waves which can be detected with a sensitive instrument called a seismograph. The earliestseismograph was invented in China A.D. 136 by a man named Choko. |
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