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Our Changing Earth — Social Studies STD 7 — Question

CBSE BoardEnglish MediumSTD 7Social StudiesOur Changing Earth1 Mark
MCQ
Earthquake is measured with machine called:
  • A
    Telegraph.
  • B
    Compass.
  • C
    Lactometer.
  • ✓
    Seismograph.
✓

Answer

Correct option: D.
Seismograph.

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