I need help with number 3 I am confused

The line dividing regions 4 & 5 on this map is known as the "fall line." which of these represents an important factor of the fall line in georgia history? a) it was the first boundary of the georgia after it became a state. b) it was an important source of power due to a change in elevation. c) it was once home to major cities that have since become abandoned. d) it was a dividing line between the united states and native american territories.

The indian national congress and the indian national army were the two wings of the freedom movement in india. a. which of these would you have joined? give reasons for your answer. b. why according to you was the indian national army not able to reach where it actually wanted? answer it quickly plsss

World war i brought increased immigration to the united states from which country? germany france italy mexico