One reason why the Grand Canal was such an essential part of China's economic health is because "<span>b. It was a practical and economic way to transport foods like rice from the Yangzi River valley to residents of northern regions," since prior to this the distances were long and the routes were treacherous. </span><span />
Japan invaded Manchuria.
They did this because Manchuria was poorly defended and had many resources.
It had living space for their surplus population and Manchuria had enough raw materials, food and other goods that would make Japan self-sufficient.
The Senate of the Roman Republicwas a political institution in the ancientRoman Republic. It was not an elected body, but one whose members were appointed by the consuls, and later by the censors. After a Roman magistrateserved his term in office, it usually was followed with automatic appointment to the Senate
The answer is a the president lost power to the supreme court