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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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ibukunsulie85 ibukunsulie85
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6 years ago
The earliest seismographs were designed by the Chinese nearly 2000 years ago to measure ________.
 
  A) the magnitude of an earthquake B) the depth of an earthquake focus
  C) the intensity of an earthquake D) the direction to the earthquake focus
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HadajahpopeHadajahpope
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6 years ago
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4 years ago
Thank you
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