Depending on the context and who built the wall, it was usually to keep the residents of the city inside the city, OR to keep people outside the city outside / stop the influence of people outside the city from entering the city.
The answer is B it allowed farms to be able to purchase more land, therefor increasing crop output.
Available resources are not limited
Answer:
A
Explanation:
These are all foods that have been eaten for centuries as the others are more difficult to obtain, like shrimp ice cream and jello
The vast majority of them were people ... primarily men ... who hunted and gathered stuff to eat.