Can somebody read this and answer these four questions for me, you don't even have to read it, if you know the answer that's even better. Thx.

Why was the monroe doctrine necessary?

Why was the emancipation proclamation widely attacked when it was written?

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.