Answer:
Option: D. the increase in the development of new uses for natural resources.
Explanation:
Coal, Iron, and Timber played a significant role in industrial growth during the late 1800s. With the availability of the timber at a larger quantity helped the industry in construction and wooden production. Mining coal and iron supported factories and manufacturers to develop rapidly. Coal was necessary for the fuel and iron for making metal goods and construction of industries. The railroad industry at the 19th century supported coal mining industry. Coal became necessary fuel for railways to operate their engines as it became a cheap and efficient source of power for steam engines.
Review any federal, state, or local law/action to if it is constitutional
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It would be the "Wagner Act" that allowed labor unions to participate in collective bargaining with business managers, since this was signed by FDR and was thought to be more fair to the individual workers.