How did british railroad workers solve the problem of finding materials to build foundations

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.

List 3 impacts wwii had on canada.

How did the united states ironically create a slaverybased market economy and democratic political system?