The Hans dynasty retains centralized burueacracy and unified political system of the Quin but adopts and grafts upon this the Confucian view that government should be run by educated, ethnical men.
Heavy rainfall or violent wave activity can cause "floods", since if a particular area that is affected by these weather conditions lacks the drainage resources necessary to reduce the water build up then it has nowhere to go.
Answer:
canals were built primarily in the north
B university of Washington
