How can a student find out more about core skills such as evaluating arguments which will be applied in the course?

How can a student find out more about core skills such as evaluating arguments which will be applied in the course?
The correct answer is second one:

"Select the backpack icon from the lesson viewer and select Web Links."

Which are essential elements to include when naming work and saving it to the course folder? Select all that apply.

“Unit number and Lesson number”

b) the confederacy had to pay all union war expenses.

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.