What issue was woven through all divisions of north and south? western lands

tariffs

agriculture

slavery

Honestly, I think the answer is slavery... this a review question so i cant look at notes. Please help if you can...!

An important accomplishment of the chinese during the han dynasty was the a. invention of paper. b. production of bronze tools. c. construction of the great wall. d. building of royal tombs.

Read the following passage. the early mill girls were of different ages. some were not over ten years old; a few were in middle life, but the majority were between the ages of sixteen and twenty-five. the very young girls were called "doffers." they "doffed," or took off, the full bobbins from the spinning frames, and replaced them with empty ones. based on the passage, early mill girls were mostly young. were mostly middle aged. were of a variety of ages. were mostly children.

Brainliestttme : ) how did the soviet union try to maintain control?