Water is an indispensable resource for the survival of all kinds of creatures, if there is no water, then all creatures on earth will face extinction. In areas where rainfall is low or far from rivers, it is very difficult to obtain water resources. Especially in times of drought, the lack of water resources is more and more serious. If groundwater sources can be found and wells can be drilled to extract water, the water shortage situation will be greatly improved. However, groundwater sources also have their own veins, and if you can't find a place, the well you drill will either be short of water or have no water, so you must choose carefully before drilling a well to avoid wasting manpower and resources.