The expansion of the rail networks led to
*a growth in the steel industry.
*a growth in the textile industry.
*a decline in the coal industry.
*a decline in the meatpacking industry.

a) A growth in the Steel Industry

Explanation:

Steel had a big impact on the society and was used for railroads rails, train cars, buildings and bridges. This caused the steel industry to grow. Steel shaped American cities and became important to construction.

land settlers

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the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.