What is the main reason early spaceflight missions were unmanned? a) no one was willing to travel into space. b) the rockets were not yet large enough to carry people. c) the u. s. government wanted to keep the missions a secret. d) the u. s. government knew this was the safest way to test the rockets.

Which statement best explains how the invention of corporations contributed to the economy in the 1800's

4. any area in which one nation has power over another; i.e. - this happened to china when it was defeated by japan

Two gymnastics teams are intense rivals. the first team has started recruiting new gymnasts from different cities and even foreign countires in an effort to build a stronger team. after learning this, the secondteam begins its own recruitment campaign to find better gymnasts. over a period of months, each team recruits dozens of players, each time trying to find a better recruit than its rivals most recent addition. which idea from the cold war is most similar to this scenario