Urban planner daniel burnham oversaw the design and construction of the world’s columbian exposition, but he made an even more important contribution to cities. what was it?

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. b) its color is different than pure gold. c) the gold atoms are not arranged in a repeating pattern. d) it can be melted and transformed into a different substance.

Which social media guideline defines what to do if you find a fabrication on a social media site?

Which of the following would a historian most likely study to find data