A borehole is a narrow, deep hole drilled into the ground to access underground resources such as water, oil, or minerals. It is typically created using specialized drilling equipment and can vary in depth and diameter depending on its purpose. Boreholes are essential for various applications, including geothermal energy extraction, groundwater monitoring, and mineral exploration. Once a borehole is drilled, it may be lined with a casing to prevent collapse and contamination. Water boreholes, for example, are often equipped with pumps to bring water to the surface for agricultural or domestic use. Proper management of boreholes is crucial to ensure sustainable resource extraction and environmental protection.