Which items in the list are secondary sources a historian could use to
contextualize why a political revolution occurred in Egypt in 2011?

step-by-step explanation:

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.

answer: the unlawful use of violence and intimidation, especially against civilians, in the pursuit of political aims.

explanation: