FREE POINTS LOL (●'◡'●)☆*: .｡. o(≧▽≦)o .｡.:*☆

Draw conclusions  why might a cause like italian unification successfully draw people of very different backgrounds together?  

An important accomplishment of the chinese during the han dynasty was the a. invention of paper. b. production of bronze tools. c. construction of the great wall. d. building of royal tombs.

Will have the greatest effect on human health. pollution in the a. troposphere b. stratosphere mesosphere d. thermosphere