The star constellation called the big dipper only looks the way it does from earth. Which of these models would be most useful explaining this

the completion of the erie canal spurred the first great westward movement of american settlers, gave access to the rich land and resources west of the appalachians and made new york the preeminent commercial city in the united states.

answer; i believe the correct answer is ( quakers);

the name of the theory is landmass theory.