Seismograph is a scientific instrument used for:

A. recording earthquakes

B. recording fluctuations in blood pressure
C. detecting underground gas fields
D. None of these

Occurrence: Concept Academy Notes

Seismograph is a scientific instrument used for: | recording earthquakes | CSS, PMS, PPSC, FPSC, KPPSC, SPSC, ISSB and NTS Past Papers | Pakistan's Largest Online Past Papers Database

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