Help me on this one tornadoes

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.

Business and industries in the 1920's most closely followed the buying demands of a) the government b)farmers c)consumers d)manufactures

Who led the continental army in the final decisive battle of the revolutionary war at yorktown