What is the longest river in china that enters the east china sea near shanghai?

There are two major rivers in China that empty into this general area, the Yellow (Huang He) and Yangtze. Shanghai is located right on the banks of the East China sea, and the Yangtze River is the river that flows through Shanghai into the East China Sea, so that is your river.

i believe so yes mindblown

sediment layers stop spreading when they reach a barrier or they run out of sedimentary material. lateral spreading is the movement of gently to steeply sloping, saturated soil deposits caused by earthquake-induced liquefaction. i hope this . : )