What change did the 17th amendment make to the constitution and what impact did this have on the federal system?

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

Which answer best describes an advantage of shipping goods by canal? a) most towns would rather have canals then noisy railroads b) goods could travel very fast downstream in the canal system c) traveling by boat is a much more relaxing way to transport goods. d) heavy loads of goods could travel by boat more easily then if pulled by horses.

Select all that apply. in the australian empire, what group(s) wanted to establish an autonomous state? greeks czechs hungarians ottoman turks