Coal and wood are two sources which had been used extensively since the 18th century. when steel was commercialized heavily using the Bessemer Proces later at the 19th century. At this time, petroleum became the major energy source of energy and was even used extensilvely in other processes as converting petroleum to fuels.
Answer:
A sword is a weapon.
Explanation:
People sometimes used it to fight
It is technically correct that president carter asked the American people to control consumer spending to solve economic problems, but he did not intend for it to be taken the way it was.