Answer:
Explanation:
Article I, Section II of the Constitution says that each state shall have at least one U.S. Representative, while the total size of a state's delegation to the House depends on its population. The number of Representatives also cannot be greater than one for every thirty thousand people.
River Valleys, as these had the best soil for agriculture and were close to a major fresh water supply.
Europe, Asia, Africa are the first three
I believe rice became a Chinese Staple food during the Tang dynasty because new types of rice and new growing techniques yielded bigger harvests. Hope that helped.
