Back then they didn't rise as big as they do today
Answer:
Cause those americans don't know anything
Explanation:
wait, im from america...
Its because most rivers cannot go there
<span>During the Agricultural Revolution, new patterns of crop rotation and livestock utilization paved the way for better crop yields, a greater diversity of wheat and vegetables and the ability to support more livestock. These changes impacted society as the population became better nourished and healthier.</span>