Answer: the Great depression could have been avoided by overproduction. Factories and farms were producing more goods than the people could afford to buy. ... As a result, prices fell, factories closed and workers were laid off.
Railroads were far more effective at transporting goods across the country without the risk or delay that comes with sailing. Canals while effective weren't as speedy or reliable as a train since boats are rather fickle things. The turnpikes were being used by wagons and carriages that I doubt could compete with Trains!
<span>decline of scientific and medical knowledge</span>
