Various surface geophysical techniques are used in groundwater exploration, which include the electrical resistivity method, seismic refractive method, magnetic method, radioactivity method, gravity method, an electromagnetic method. But there are many other methods that are locally used to find the groundwater like the one shown above. Image/Audio Courtesy: Unknown⁠ DM for credit or removal requests.⁠ Use intended only for knowledge and information purposes.⁠ ⁠ #civilengineering #theconstructor