The answer is 'B'.
Perestroika was a Soviet policy to make the economy more open to foreign competition and individual citizens.
Mikhail Gorbachev attempted to reconstruct the economic system of the Communist Party.
Example: Ending price controls
Glasnost refers to the government becoming more open.
Answer:
Alexandria
Explanation:
The Alexandria Egyptian city was known as the intellectual center for science and medicine.
<span><span> Downfall of Mali Empire:</span> </span>Weakened by attacks and internal rewbellion. The Mali lost it's hold on the Gold and Salt trade. The Songhai empire was then able to grow in power and take previously held Mali territories.
The downfall of Songhai Empire: The Moroccan armies invaded Songhai, which led the fall of Songhai empire.
The downfall of Ghana Empire: In the 11th century, when the Almoravids, a militant confederation of Muslims, began to attack the empire and even conquered it for a time. Though their grip on power did not last long, the chaos they brought to the region destabilized trade, hurting the empire's sources of income.
