Which statement describes the southern christian leadership conference? blacks register to vote significant civil rights organization led by dr. martin luther king jr. all of these used several non-violent tactics to end segregation

All of these.

The Southern Christian Leadership Conference (SCLC) was formed in 1957.  Martin Luther King, Jr., was president of the organization from its founding untill his assassination in 1968.  The fact that it included the name "Christian" in its title tells you that a large measure of the support and organization for the group came through the Christian churches of the black community.  The SCLC was devoted to promoting civil rights, including getting black persons registered to vote, and stayed committed to using non-violent methods.

The transcontinental railroad provided a means of fast transportation. it cut a 6 month trip into 6 days, created jobs for many people and encouraged immigration. the homestead act played a huge role in western expansion; it allowed settlers to begin a fresh start, and gave them land in exchange for their residence for up to five years and a small fee.