The Yellow River is located at . The structure built to keep out the northern barbarians was called the and is located at . The Silk Road is located at .

China

The Great Wall in China

China

Explanation:

The Yellow River is also known as Huang He River. The Yellow River got its name after the sand that washes into the river. The Yellow River provide freshwater to the farming regions of China. The flood provided rich fertile land to cultivate rice that allowed China to emerge as a flourishing civilization with advanced art and science.

The Great Wall of China built during the reign of Qin Shi Huang in the Qin dynasty. The wall was triumphant in continuing keeping invaders(Mongols) from the North. The Mongols frequently lead raids into China.

The Silk Route is one of the earliest trade routes that connected China to the western world. Silk, tea, porcelain, sugar, spices, cotton, ivory, wool, gold, and silver were commodities.

propriety is the answer. hope this !

explanation:

social contract theory basically says that all individuals are born equal, and provided a god given right to consent to be governed. american government is based of this

thomas hobbes and john locke said that we are selfish, individualistic, and constantly at war with each other, therefore we need to be controlled. 

government is defined as the legitimate use of force to control human behavior within territorial boundaries, here comes in hobbes and locke.

hobbes takes the part about controlling human behavior. while locke takes the part of legitimate use of force, since force is not legitimate unless there is consent of the people. 

there are basically 3 goals of the government: 1) maintain order by protecting life and property. 2) providing public goods, those which are typically not provided by the public sector, such as roads and education. 3) promote equality be it political, opportunist or outcome equality.