In providing aid to the blacks after the civil war, the freedmen's bureau g

a. concentrated on poor whites instead of blacks.
b. was characterized by mixed success.
c. was generally unconcerned with black needs.
d. was a total failure.

answer:

(b.)

explanation:

freedmen’s bureau, (1865–72), during the reconstruction period after the american civil war, popular name for the u.s. bureau of refugees, freedmen, and abandoned lands, established by congress to provide practical aid to 4,000,000 newly freed african americans in their transition from slavery to freedom.

1. effect of density in speed of sound.

2. effect of direction of wind in speed of sound.

Explanation: