The north was heavily dependent on industry while the south was dependent on agriculture. The southern economy was based on the free work they were getting from slaves the north did not need slaves as they were less dependent on agriculture
Answer:
Okay, so the first one is both because both lands could be sold at this time,
The second one is American steelers,
The Third is Native America,
And finally, the last one is Both,
(the last one was obvious you should of know one at least!)
Explanation:

All sources will have some element of bias in them due to the fact that they are products of a specific person's (or specific people's) views. The best ways to deal with bias are 1) to acknowledge the bias and comment on it, 2) to include several sources with differing biases and discuss their differences, or 3) the analyze what the existence of the bias might indicate about the issue.
I would say a good adjective to describe Thomas Jefferson would be intelligent.