Answer:
Hello. You did not show the graph mentioned in the question above, however we are able to state that American industries were directly supported by the government during the industrial revolution that took place in the country in the 19th century.
Step-by-step explanation:
After the American civil war, US industrial power increased considerably. This sector received direct investment from the government, in addition to regularization that stimulated industrial growth. This caused companies to grow considerably, industrial production surpassed rural production, northern states received a large number of workers, which further increased industrial production and established the USA as one of the great world powers.