1. Which of the following resulted in the doubling of the size of the United States? (1 point)
the Kansas-Nebraska Act
the Gadsden Purchase
the Louisiana Purchase
the Mexican War

the louisiana purchase

Explanation:

because at the beginning United States was just by the 13 colonies and with this purchase it increased its size.

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

this act gave the federal government the power to relocate any native in the east to territory west of the mississippi river.