In the 1920s, railroads did not face competition from which of the following? a. trucks b. automobiles c. buses d. planes

What advantages did the ming dynasty gain from the land it controlled?

Ireally have to get this done today and i'd appreciate any i could get, !

After the success of the sputnik launch, the united states feared that they would never be able to launch their own satellite, the ussr had used technology developed by the united states, the soviets had superior nuclear capabilities, that any future us satellites would not be as successful.