Answer:
Labour
Explanation:
The failure to find alternative sources of Labour
Great Plains, Canadian Shield, the varied eastern region,and the Caribbean.
Leading the struggle against apartheid
Both.
A variety of Federal programs, including the Clean Water Act, have delegated authority built in which means that the States enact the Federal programs.
So, both is the correct answer.
Answer:
Slavery played the central role during the American Civil War. The primary catalyst for secession was slavery, especially Southern political leaders' resistance to attempts by Northern antislavery political forces to block the expansion of slavery into the western territories.