How does the compound government proposed by james madison provide "double security" to the people?

Which factor contributed to the rise of african empires such as ghana and mali?

What is the name of this mountain range found in northern africa?

Why does c. wright mills identify critical thinking as one of the most important criteria for the development of intellectual craftsmanship? why is constantly being aware of the biased nature of your reactions and interactions (what c. wright mills calls self-reflexive) key to the development of that critical thinking? finally, why is keeping a file important, how can it lean to intellectual curiosity which can foster critical thinking and to develop a keen analytical mind?