7. Which group was responsible for the results described below? Developed a tribute system
Reestablished trade along the Silk Roads
Created an empire from Eastern Europe to the Pacific coast of Asia
a. Huns
b. Japanese
c. Koreans
d. Mongols

d. Mongols

Explanation:

Under Genghis Khan and his descendants, the Mongols developed the largest land empire that the world has ever seen with their dominions stretching from the pacific coast of Asia to Eastern Europe.

In their lands, they reestablished the Silk Road and offered such protection on it that trade flourished in the empire and even continued after the empire shrank. They also developed a tribute system to ensure the empire remained rich.

these civilizations were located around fertile rivers, where they could produce an abundance of crops