I think it's b himalayas. Hope this helps
Answer:
The Mongol Empire
Explanation:
It covered 9.15 million square miles of land.
Well they invented the abacus and the wheel
I would also say C. movement of people to urban areas is the correct answer.
Industrialization meant that the country was becoming more and more technologically advanced. There were new factories, which meant there were new job positions. So obviously people wanted to come to the city in order to pursue a career.
