Describe how carbon 14 is used as a dating method
The Industrial Revolution, which began in Britain in the 18th century and later spread to continental Europe and North America, was based on the availability of coal to power steam engines.International trade expanded rapidly when coal-fed steam engines were built for the railways and steamships.
Many coals extracted from both surface and underground mines require washing in a coal preparation plant.
This is accomplished by drilling holes into the overburden, filling the holes with explosives, and detonating the explosive.
The overburden is then removed, using large earth-moving equipment, such as draglines, shovel and trucks, excavator and trucks, or bucket-wheels and conveyors.
Coal mining is the process of extracting coal from the ground.
Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity.
The overburden from the first strip is deposited in an area outside the planned mining area and referred to as out-of-pit dumping.