One form of resistance was slowing down the picking of cotton. Slaves would intentionally go slower so that they could have an easier time in the fields. This was combatted by the Southern Plantation owners after a while by whipping the slaves severely during their first picks and then mandating that they had to pick at least as much cotton every time after.
Another form of resistance was to run away. The Underground Railroad helped thousands of slaves escape to the north and to freedom.
The answer that best describes how African Americans participated in the war effort during World War II is letter B. They were fully integrated into the armed forces and fought alongside whites. They actually volunteered to join
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The first rocket in space was a turning point in history because it inspired the space race, made the United States aware of the possibility of Russia creating rockets to deliver nuclear weapons, and created a reform in education.