Answer
The Rocket Technology
Explanation
Konstantin Tsiolkovsky was the Father of Modern Astronautics who in 1898 first proposed the idea of space exploration by rocket. In his first report he suggested the use of liquid propellants for rockets in order to attain a higher range. Early in the 20th century, Robert H. Goddard an American published a pamphlet attaining higher altitudes in rockets with a mathematical model called the meteorological sounding rocket.
It was <span>Andrew Carnegie.</span>
A. Ninth
The Ninth Amendment was introduced to prevent anyone from assuming that the rights enumerated in the bill of rights were the only protected rights by the Constitution.
1.3 million served, 50,000 died
An oligarchy describes C. "rule by a small group". The size of this group can vary greatly but it relative to the size of the population its controlling and usually results and unfair governance.