The instrument which is used to measure and record the magnitude of an – McqOptions

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1.	The instrument which is used to measure and record the magnitude of an earthquake in terms of shockwaves is known as:
A.	(a) Ritcher scale
B.	(b) Electroscope
C.	(c) Seismograph
D.	(d) All of these
Answer» D. (d) All of these

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