Im paying a high price on this question. explain how rocks can preserve a record of ancient climates.

Answer by Mimiwhatsup: These 'rocks' are actually called fossils they are originally called sedimentary rocks as they are the only rocks that can undergo the certain process. Besides fossils regular rocks can be used to show how long they have been around there are these machines that show how long something has been around and what happened to it.

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.