Which factors contributed to the growth of industries after the civil war

Explanation:

Availability of massive supplies of raw materials, such as timber, iron ore, oil and other resources.

Development of new inventions and technology.

Existence of a large labor force constantly replenished by immigration.

i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years