How did the practice of buying stocks on margin contribute to the crash of the stock market in 1929?

The practice of buying stocks on margin contributed to the crash of the stock market because the facility to pay for the stocks from the profit gained from the stock increased the demand enormously and eventually resulted in the crash of the stock market.

Explanation:

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in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.