How did the mechanization of the mining industry affect
the american economy?

By the coming of the industrialization, led to an increase in the mining industry because it provided coal, iron ore, etc., to run factories.

Explanation:

The mining industries began to grow during the industrial revolution in Europe and America. Iron ore and coal played a crucial role in expanding industries. Companies benefited from the mining industries because it also helped in bring steamships and railroads for transpiring raw materials and as well as for the goods. More opportunities for jobs were available.

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".

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