How did Indian removal reduce the danger of conflict between the federal government (which had treaties with these sovereign nations) and the states (which were set upon opening Indian territory for white settlement)?

What was herbert hoover and the food administration do in wwi?

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.

Who did the first work in creating vaccines