Answer:
Missouri Compromise.
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What gave them an advantage is economic prosperity due to rich soil and development of plantations based on slave labor. Many profit was accumulated from crops (tobacco) and also cotton. Later on in the 1800s when Eli Whitney created the cotton gin it created a boom in the slave industry and increased largely by 71%. After that the tool allowed mass production in textile industries.
The two countries that were split by civil wars between Arab Muslims in the north and non-Muslim groups in the south was Sudan. The correct answer is E, Sudan.
One of the central factors in the establishment of the trans-Saharan trade was "<span>b. The domestication of the camel," since only camels could survive the very long distances and extreme heat. </span>
