Many of the workers on the transcontinental railroad were

A Chinese immigrants.

B Native Americans.

C African Americans.

D Southern laborers.

In the midwest because it has more moderate climate than the north or south west which makes farming far easier.

The second , larger puritan colony of massachusetts bay was conceived as a "city upon a hill". but it also struggled with internal turmoil like the salem witch trials and external conflicts like king philip's (metacom's) war.