Pz which of the following is marked by the appearance of organisms with hard parts?
question 8 options:

the beginning of the cenozoic

the end of the precambrian

the end of the mesozoic

the beginning of the cretaceous

the beginning of the Cenozoic

Explanation:

floods

happy to

pls mark as brainliest

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.