He faught them and protected his country
The two correct answers are; The invention of the cotton gin and westward expansion.
Further Explanation:
The cotton gin helped to take the seeds out of the cotton, but it increased the need for plantation owners to have more slaves. Since the work was done faster with the gin, they needed more slaves to keep up the work. This caused political debates to abolish slavery, but it still took a long time to get slavery abolished.
The Westward expansion also increased the need for slaves. With so many people leaving the East coast, they needed slaves to help families cook, wash, and do many other things. This also got the political debates started and in the right direction, but it would still not end slavery altogether.
Learn more about abolition at brainly.com/question/2835737
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To help employees function effectively in job situations, a human-factor psychologist designs products that are safe, effective, and easy to use.
Answer:
b
Explanation:
the author used the words I Believe, which indicates an opinion
