My account screwed up and deleted so if u were my friend will you pls add me back?

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.

Name this famous relief sculpture and the time period it is from. describe what is happening in the sculpture.is this sculpture characteristic of the time period which was created in?

In what kind of building will you find the 15 x 29 ft. mural created for the husband of beatrice d'este?