An Electromagnetic Survey is a geophysical method used to measure the electrical properties of the ground. This technique involves sending electromagnetic waves into the earth and analyzing the response. It helps identify different materials underground, such as minerals, water, or contaminants, by detecting variations in conductivity. These surveys are commonly used in fields like mining, environmental studies, and archaeology. By understanding the subsurface conditions, researchers can make informed decisions about resource extraction, site remediation, or archaeological exploration. The data collected can be visualized in maps, providing valuable insights into the geological structure of an area.