Over time, the power of the presidency has expanded because

Brainliestttme : ) why was the launch of sputnik in 1957 important? -most in the u.s. had not thought the soviets were capable of producing satellite technology. - it made clear that the u.s. space program was dominant. - most in the soviet union had not thought the u.s. was capable of launching manned aircraft. - it established the fact that a more dangerous hydrogen bomb could be created.

Why did the collapse of the soviet union and the power vacuum in the balkans lead to bosnian genocide?

Afeature that an organism __ and reproduce in its environment is called a