What architectural design was the most important to basic survival?

Which of these pieces best illustrates the use of variety over unity? leonardo da vinci, study of human proportion: the vitruvian man laylah ali's untitled louise lawler's pollock and tureen auguste rodin's the three shades?

Which does the author mean by " nature had to kindle all the fires, for man by his own effort was unable to produce a spark

Where does the wood yiri come from? i know it is somewhere in africa but a specific location, . worth 15 points hurry