What methods are used to extract various minerals?

Initially, a thorough geological exploration is carried out to ascertain whether it is worth investing in industrial development. To extract oil and gas, wells are drilled through which oil and gas under high pressure come out of the earth’s interior. Coal is also mined in an open way, i.e. when excavators scoop coal with buckets and load it into dump trucks, as well as underground, when coal seams are deep underground and mines are erected to extract and transport coal to the surface of the earth.