Objects in the kuiper belt lie beyond the orbit of neptune, and close to the ecliptic: a) are the sources of long-period comets. b) are dense, like the iron meteorites. c) are in random orbits at all inclinations to the ecliptic. d) lie beyond the orbit of neptune and perpendicular to the ecliptic.

a) are the sources of long-period comets.

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.

the answer is the last option or letter d)