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Which geophysical method uses electrical resistivity to study subsurface layers

This question belongs to Geological Engineering Geophysical Methods In Engineering
Geophysical Methods in Engineering
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Which geophysical method uses electrical resistivity to study subsurface layers?

Answer & Solution
Correct Answer: Option B
Electrical resistivity method involves passing current into the ground and measuring voltage difference.This helps identify variations in subsurface resistivity, useful in detecting water tables, clay layers, and voids.
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