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Which of the following is a non-destructive geophysical technique

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-destructive geophysical technique?

Answer & Solution
Correct Answer: Option C
Electrical resistivity survey does not disturb the ground and is widely used to detect subsurface features like bedrock, water table, and voids.
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