What city lay in the intersection of the main trans-saharan trade routes?

Overpopulation puts severe stress on the environment because .

What are the expressed and implied powers of the president

Which is a result of the free exercise clause? parents can prevent their children from being vaccinated. people with a religious objection to military service cannot be drafted. businesses that sell religious materials can be open only on sundays. amish children do not have to attend school past the eighth grade.