How did the government support the expansion of the railroads in the United States?

So the federal government passed the Pacific Railroad Act that provided land grants to railroads. This provided public lands to railroad companies in exchange for building tracks in specific locations. ... The federal government hoped the railroad profits would be reinvested for further expansion.

Explanation:

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.

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