Christopher Columbus In 1493, on his second voyage to the Americas, Spanish horses, representing E. caballus were brought back to North America
Answer:
no one can read it get a better picture
Explanation:
Answer:
They had never seen these diseases so their immune system couldn't handle them. So, lots of people died and the population went down.
Answer:
Fertile River Valleys
Explanation:
The Indus River Valley Civilization and Mesopotamia were all centralized on these fertile river valley because it allowed food to easily grow so they had excess food, bringing more people in.
