Why was the lewis and clark expedition important?

Once the plague became airborne, how could it then be spread?

How does the balance of trade look different in the us today vs hot it looked in the 70's

Plz which of the following provisions of the compromise of 1850 was designed to appeal to slave states? a. congress passed a strict fugitive slave law. b. the slave trade was banned in washington dc. c. texas agreed to give away some of its land so that the territory would be available for future states. d. california was admitted to the union as a free state.