What was the Proclamation of 1763 designed to do and what impact did it have on British Colonial relations?

World war 2 was caused, in part, by which of these factors?

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.

What does it mean to say the united states has a federal system of government