Ans:<span> Option (C) Transported groundwater from a distance </span> Karez water system is in Turpan, the prefecture-level city located in China. It consists of wells that are vertically dug and are lined up horizontally. There are various canals that are connected and linked to these wells. The main purpose is<span> to collect water from the </span>watershed surface that is at<span> the base of the </span>Tian Shan Mountains.