Answer:
Ronald McNair was nationally recognized for his work in laser physics and was one of the thirty-five applicants selected by NASA from a pool of ten thousand. In 1984, McNair became the second African-American to make a flight into space. He was a mission specialist on the space shuttle Challenger.
Explanation:
By making steam engines a reliable power source
Answer:
The answer is letter b. about 2,200 years ago
Explanation:
Eratosthenes of Cyrene was a mathematician, grammarian, poet, geographer, librarian and astronomer from Ancient Greece, known for calculating the circumference of the Earth in 200 BC. He was born in Cyrene, in Africa, and died in Alexandria. He studied at Cyrene, Athens and Alexandria. The contemporaries called it "Beta" because they considered it the second best in the world in several aspects.
Answer: If we can say something about the history of political parties in Texas, it is that the Democratic party had a leading role in it if we don't take into account the Recontruction time in Texas
Explanation: the Reconstruction can be described as follows: for nine years following the Civil War, Texas was in turmoil, as its people attempted to solve political, social, and economic problems produced by the war. One of the major forces that threatened change in the state was the United States Army. Federal troops began entering the state in late May 1865. Their commanders believed that their duty, at least in part, was to ensure loyal government and to protect the rights of the blacks who were free as a result of the war. Except for an interlude during Reconstruction, the Democratic party was the leading political party in Texas until the 1960s. In the nineteenth century, however, the Whig, American (Know-Nothing), Republican, Greenback, and People's partiesqv provided at different times a formidable opposition, so that Texas did not become a real one-party state until after 1900, when the Republican party sank into insignificance and minor parties largely disappeared.
The national government had no national military.
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