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Which of the following is a non-invasive geophysical method

This question belongs to Geological Engineering Site Investigation And Geotechnical Exploration
Site Investigation and Geotechnical Exploration
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Which of the following is a non-invasive geophysical method?

Answer & Solution
Correct Answer: Option C
Electrical resistivity method is a geophysical technique to estimate subsurface profiles without excavation.It is widely used to detect groundwater, voids, and different strata.
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