Q69
Ground Penetrating Radar (GPR) works by:
A.
Detecting changes in soil color
B.
Transmitting seismic waves
C.
Sending electromagnetic waves and analyzing their reflection
AnswerD.
Using hydraulic pressure
Answer: Option C
Solution
Answer: Option C
Solution:
GPR sends high-frequency electromagnetic waves into the ground and captures reflections from subsurface objects or changes in material.