USA HISTORY

Detailed explanation-1: -There are four main methods of mining: underground, surface, placer and in-situ. The type of mining method used depends on the kind of resource that is being targeted for extraction, the deposit’s location below or on the Earth’s surface and the capacity of each method to profitably extract the resource.

Detailed explanation-2: -Open-pit, underwater, and underground mining. These are the three main methods of mining we use to extract our products from the ground.

Detailed explanation-3: -These mining categories are: strip mining, open-pit mining, mountaintop removal, dredging and high wall mining.

Detailed explanation-4: -The two major categories of modern mining include surface mining and underground mining. In surface mining, the ground is blasted so that ores near Earth’s surface can be removed and carried to refineries to extract the minerals.