Because of large reserves that center around the Persian Gulf, the Middle East often produces as much as two-thirds of the world’s supply of "Petroleum," since this is made from fossil-based oil.
Upton Sinclair’s The Jungle
The south required slaves because of their farming and cotton industries. Where the North was more industrial, so they didn't need slaves as much.
A- formed a new political party
D- fought against Adam's policies
Answer:
it provided a labor force for future oil and natural gas industries
