Answer:
1. pretty sure its C 2.d 3.A 4. b 5. I think b. thats what makes sense to me
Explanation:
I did a very similar lesson a while back.
Animals moved from place to place bringing mating and crowding causes animals to separate and make new herds leading to different areas being populated.
Answer:
The empire unified the nomadic Mongol and Turkic tribes of historical Mongolia under the leadership of Genghis Khan, who was proclaimed ruler of all Mongols in 1206. The empire grew rapidly under his rule and then under his descendants, who sent invasions in every direction.