Option 'B' = changes in climate, had the greatest impact on pre-historic man.
Changes on the weather forced men to move periodically or cyclically, usually returning to their original location at various times. When they moved to colder climates, they would make clothing out of animal skins, to protect themselves. When the nomads learned how to plant, they didn't need to search for other places anymore.
Selma: The Bridge to the Ballot is the story of a courageous group of Alabama students and teachers who, along with other activists, fought a nonviolent battle to win voting rights for African Americans in the South. Standing in their way, a century of Jim Crow, a resistant and segregationist state, and a federal government slow to fully embrace equality. By organizing and marching bravely in the face of intimidation, violence, arrest and even murder, these change-makers achieved one of the most significant victories of the civil rights era.
Answer:As segregation tightened and racial oppression escalated across the United States, some leaders of the African American community, often called the talented tenth, began to reject Booker T. Washington’s conciliatory approach. W. E. B. Du Bois and other black leaders channeled their activism by founding the Niagara Movement in 1905. Later, they joined white reformers in 1909 to form the National Association for the Advancement of Colored People (NAACP). Early in its fight for equality, the NAACP used the federal courts to challenge disenfranchisement and residential segregation. Job opportunities were the primary focus of the National Urban League, which was established in 1910.
Explanation:
