How did the enlightenment affect african americans during the revolutionary era?

How did industrial production improvements impact export-dependent areas of the world during the great depression?   a.  demand for certain raw materials rose.      b.  demand for certain raw materials fell.      c.  the new technology was exported to most raw material producing nations.      d.  there was a decrease in tariffs.

How did tyrants attempt to gain the approval of common citizens?

What former head of the cuban secret service was charged with protecting the country's prime minister for nearly 50 years?