sugra matlab.................?
The post industrial economy is a phrase that describes the shift of some major industrial economies in the late twentieth century away from producing goods and toward producing services.
You asked what I thought so I am going to give you my honest opinon. Emphasis on opinion
As a victim of the Indian attacks, Mary Rowlandson wrote a vivid description (her short book, "A Narrative of the Captivity and Restoration of Mrs. Mary Rowlandson") of the eleven weeks and five days she spent living with the Native Americans.
"To accommodate for lack of dependable rainfall" would be the best option as to why the ancient Chinese organized large groups of people to build and maintain irrigation systems, since when rainfall would not come for long periods of time, the crops would likely die without proper irrigation.