What bodies of water border the us on the east and west?

Distance that the transcontinental railroad covered from omaha to san francisco.

In the construction of new housing development, which factor of production can be categorized as land?

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory