Why were tariffs first supported, then opposed, by american companies in the period after the civil war?

Which of the following best describes the outcome of the bay of pigs invasion? -it ended in a draw despite strong air support from the united states. -it was a partial success that to resolve the cuban missile crisis. -it was a success and created hostility between cuba and the soviet union. -it was a failure that was an embarrassment for the kennedy administration.

Which is true about the monroe doctrine?

What industry was exempt from the child-labor laws passed in the factory act of 1833?