Chinese Quiz
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In A.D. 130, Zhang Heng, an astronomer and literary scholar, invented the first instrument for monitoring :
Volcanos
Tsunamis
Earthquakes
Hurricanes
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Zhang Heng invented the world's first seismometer, which discerned the cardinal direction of an earthquake 500 km (310 mi) away.
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09
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In A.D. 130, Zhang Heng, an astronomer and literary scholar, invented the first instrument for monitoring :
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