The Mongols set up a tribute empire called The Golden Horde. Serfdom arose as peasants gave up their lands to the aristocracy in exchange for protection from the Mongols. Moscow benefited financially by acting as a tribute collector for the Mongols. Mongol rule kept Russia culturally isolated from Western European trends such as the Renaissance.
Answer:
Your answer is D. Excess nutrient levels
Explanation:
Western Europe has warmer weather.
I think its California let me know if this is correct
