Question

what are the benefits of coal ????

Answer 1

to make road
cook food

Answer 2

Coal has been used as a heat or energy source throughout the world since at least the Bronze Age. Coal was an important fuel for the Romans in the West as well as in China around the same period. During the 18th-19th centuries, coal provided a portable abundant energy source to power the Industrial Revolution. In addition to the obvious use of coal as a source of heat and steam power, the evolution of steelmaking from using charcoal to using coal allowed the process to be scaled up to an industrial level.