Answer/Explanation:
An irrigation system represents a stable food supply because it is how they controlled water to be able to plant crops. A second most important artifact that is in the category of stable food supply is the plow. Agriculture produced enough food that people became free to pursue interests other than worrying about what they were going to eat that day.
Answer:
correct option is c. Well constructed buildings
Explanation:
as for the life serving our primary need air water and food and safe place to live
so here we need Fresh water supply and Consistent Food Supply and Social Stability that is refer here for the range of life structure and the reliable routine which is protective against any situational hazard
and it also help you maintain connection
so here Well constructed buildings is not our primary need
so correct option is c. Well constructed buildings
The answer is 1950-2000, China reached 1 billion people in population in 1982.
Public support towards the issues of civil rights changed the attitude in Congress. The people and citizens of the United States really struck a cord with the members of Congress, and Congress listened!