Final answer:
The Great Mississippi River Flood of 1927 greatly affected African Americans by displacing them, worsening their economic state and exacerbating racial tensions as they faced harsh labor conditions and discriminations in relief efforts.
Step-by-step explanation:
The Great Mississippi River Flood of 1927 had a profound impact on African Americans, resulting in displacement, worsened economic conditions, and increased racial tensions. During the flood, many African Americans were forced to work on levees under harsh conditions and were prevented from evacuating. After the floodwaters receded, African Americans faced continued discrimination and unequal treatment in the distribution of relief efforts and in their attempts to rebuild their lives. As many African Americans were sharecroppers or farmers, the destruction of crops and land meant a loss of livelihood with little to no compensation. This catastrophic event not only highlighted the existing racial and economic inequalities but also worsened the plight of African American communities along the Mississippi River.