Which of the following challenges faced by lewis and clark was the direct result of a lack of available maps?
navigating rapids and waterfalls
providing for the group with food supplies
communicating with native americans
harsh winters and sand storms

i wish there was an all of the above choice
!
you!

The symbols found on the map below indicate where fossils have been found in the same layer of sediment. each unique symbol represents fossil locations of a particular species.

8. select a supreme court case that has been particularly important in protecting civil liberties in the united states. in a three-paragraph essay, describe the case and the ruling, then explain how the case demonstrates why it is important that the supreme court is: a. protected from political or public pressure (since justices are appointed rather than elected and serve lifetime terms) b. able to change its interpretations of the law over time (10 points)

Federal courts have jurisdiction when a case involves what?