Answer:
I only know the first question.
1st answer:
The U.S. entered the Vietnam War in an attempt to prevent the spread of communism, but foreign policy, economic interests, national fears, and geopolitical strategies also played major roles.
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The two participants were Abraham Lincoln and Senator Stephen Douglas
Variation in tone color produces expressive effects and emotional impact.
Corporate colonies were funded by joint stocks an allowed investors to have a vote in. the way to run a colony. Royal colonies were under the direct order of the king. He appointed the governors.