30 70
zo
Scholar Edward W. Byrn's depiction of global steam-to-sail ratios in 1860 versus 1894, published in The
Progress of Invention in the Nineteenth Century, 1900
Which of the following environmental factors contributed most to Chicago's emergence as a world leader in industry
and meatpacking?
O Proximity to large coal veins
O Location near bodies of water
O Easy access to cotton plantations
O Nearness to vast timber Supplies