Which example best illustrates the positive effect of railroads on settlement in the west?
between 1864 and 1896, ten western territories became states.
between 1864 and 1896, many workers died building railroads.
between 1864 and 1896, white settlers took over mexican american communities.
between 1864 and 1896, the demand for indian lands increased.

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

the process of industrialization is called a revolution because

the answer is states.