Answer: C
Explanation: Whites didn't need slaves in the North becomes soil was usually hard and cold, thus making slavery pointless and ineffective. On the other hand, the South was almost dependent on slaves for it made a huge portion of the South's economy, which made slavery and plantations highly beneficial.
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Answer:
Until the Mexican-American War (1846–48) only a few Americans—explorers, soldiers, trappers, sheep drivers—visited Arizona. In 1851 the U.S. Army Corps of Engineers sent several expeditions into Arizona to find a suitable route on which to build a wagon road to California. To protect travelers, miners, and other settlers from Native Americans, the U.S. government began to locate army posts at key sites. In 1883 workers completed the Atchison, Topeka and Santa Fe Railway across northern Arizona, thereby linking St. Louis, Missouri, with California; that same year the Southern Pacific Railroad completed a line from New Orleans to Los Angeles by way of Tucson and Yuma.
Explanation:
In battleground states, they will be more competitive. therefore, people of both parties will feel inclined to run and parties will put more money into flipping them or winning campaigns to show their strength.
