HELP ME WITH ART PLEASE

In what region of the united states were totem poles common forms of native american art

Need some ! asap i need to figure out 3 major changes in bridges over time and why these changes to adapt to both improvements in technology and changing social links would also alot.

Which term was used to refer to greek statues that were in the form of a standing, draped girl? a)ka b)kouros c)kore d) all of the above