What role did Sacagawea play in the Lewis and Clark's expedition? Could they have made this journey without her assistance? Explain.

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.

The second amendment is considered controversial because some people disagree about whether

What was the mame given to the idea that americans should expand across the nation ro the pacific coast