During reconstruction in the united states, the freedmen’s bureau a. administered poll taxes and literacy tests during elections. b. segregated white and african american students in schools. c. negotiated labor contracts for african americans in the south. d. african americans relocate from the south to the north.

The correct answer is C) Negotiated labor contracts for African Americans in the South.

The era of Reconstruction refers to the 12 years after the end of the Civil War. The end of the Civil War brought the end of the institution of slavery with the passing of the 13th amendment. This resulted in the freeing of millions of African-Americans who were now able to gain rights in society. One example of this would be the right to work for wages.

In order to help these citizens and ensure that they were being paid, the US government developed the Freedmen's Bureau. This organization helped newly freed slaves to gain employment and negotiate contracts so that they may begin earning wages.

answer: in october 1962, an american u-2 spy plane secretly photographed nuclear missile sites being built by the soviet union on the island of cuba. president kennedy did not want the soviet union and cuba to know that he had discovered the missiles. he met in secret with his advisors for several days to discuss the problem.

explanation:

answer:   migrations were important in the neolithic period. "two major migrations passing through southeastern europe were confirmed by the means of archaeo-genetic studies."

the first migration was the early neolithic period -- 6,000 before common era (bce) -- when the first farmers, from anatolia -- asia minor -- spread through europe. the second migration occurred during the early bronze age (3,000-2,500 bce) when the so-called "steppe population," from the eurasian steppe, replaced much of northern europe's previous population.

the first farmers of northern and western europe passed through southeastern europe with limited hunter-gatherer genetic admixture, which occurs when two or more previously isolated populations begin interbreeding. however, some groups that remained mixed extensively -- without the male-biased, hunter-gatherer admixture that prevailed later in the north and west, according to latest discoveries. southeastern europe continued to be a nexus between east and west, with intermittent genetic contact with the steppe people up to 2,000 years before the migrations that replaced much of northern europe's population.

"in some places, hunter-gatherers and incoming farmers seem to have mixed very quickly," says iain mathieson, a geneticist at the university of pennsylvania, who was first author of the paper. "but, mostly, the two groups remained isolated, at least for the first few hundred years. these hunter-gatherers had been living there for thousands of years, and it must have been quite a shock to have these new people show up -- with a completely different lifestyle and appearance."