Answer:
D. In both regions mongols helped establish a sucessful road system.
Explanation:
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In 1220, the army of Genghis Khan invaded the region of Persia and defeated the empire of Chorasmia. Shortly afterwards, the Sharas of Chorasmia, Ala ad-Din Mohamed II died and his son, named Jalal ad-Din Mingburnu, was unable to regain Persia's dominance.
The Mongols created a system of control and collection of taxes, whose payment was mandatory.
While Altan khan's reign is characterized by declaring Buddhism as the official religion of the Mongol empire, as his predecessors, he allowed freedom of worship.
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The countries that attended the conference were: Austria-Hungary, Belgium, Denmark, France, the German Empire, Italy, Netherlands, the Ottoman Empire, Portugal, the Russian Empire, Spain, Sweden-Norway, the United Kingdom, and the United States of America who had a special right to accept or decline the terms of the deal and the participation in the deal.
The effects of the conference were mostly in regards to the African Continent. They wanted to find a way to spread their empires and gain strength while not fighting each other, so they decided to cut Africa up into smaller pieces and divide it among themselves. The result was that 90% of African territory was taken by various European powers.
So what is this supposed to mean? Normally people post questions here but it looks like you posted answers lol.