What was the purpose of the pure food act and drugs act 1906

What was one major advantage that the united states industrialize rapidly in the early 19th century?

Ineed on 2-4 i want y’all to reply to this question so i can turn this into my teacher tomorrow

Look at the map of cities in the united states at the turn of the twentish century what impact did railroads have on cities across the united states at the turn of the twentish century