2 i think im not too sure though
Answer: A The Mongols struggled to govern such an enormous empire.
Answer:
Mongol Empire
Explanation:
The Mongol Empire was the largest contiguous empire the world has ever seen. The Mongol Empire covered 9.15 million square miles of land - more than 16% of the earth's landmass. The empire had 110 million people between 1270 and 1309 — more than 25% of the world's population
Christopher Columbus was instructed by the King, and Queen of Spain to travel to the new world in search of valuable natural resources. Columbus had his own inclinations to travel being that the idea that the world was spherical had not yet been a well accepted fact.
C. 1920s. Remember that the stock market crash of 1929 prompted the Great Depression.