The grand canal was built to make easier the transportation of grains to the power center of north china.
The canal was built in order to connect the Yellow River in the north with the Yangtze River in the south. This canal is built for making easier the transportion of grain from the south to the centers of north China. The total length of the Grand Canal is 1,776 km.
So we can conclude that the grand canal was built to make easier the transportation of grains to the power center of north china.
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