It led to years of peace in the country
If I remember correctly, the answers are A and D.
An object that orbits another object is called a satellite
The way that the 1862 Homestead Act helped pull immigrants to the United States is by providing immigrants with inexpensive farmland.
Many immigrants were drawn to the fact that they could own their own farmland, and not have to pay a lot for them. This is why a lot of these immigrants moved to the US.