What was the importance of the Lewis and Clark expedition? * A-It dismissed the idea of a water route to the Pacific Ocean.
B-It established treaties with Native Americans.
C-It provided boundaries for future western states.
D-It provided valuable information on western lands.

it provided boundaries for future wester states

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

north atlantic treaty organization.