Along its northern and western borders, the Han a could not establish a tributary system. b promoted the establishment of garrison cities and oases as military and farming settlements that became part of the Silk Road. c used the western deserts to defend themselves militarily but at the cost that trade did not develop in this region. d permitted regional lords to dominate and control these barren lands. e faced an enforced limit to its empire because of the Xiongnu tribesmen, whom the Han could not subdue.

When discussing comparative and absolute advantage, which best describes specialization? developing expertise in certain types of production limiting the types of goods and services produced targeting specific consumers and retailers producing certain items for specific market segments the answer is: the act of limiting the kinds of goods and services produced

A. passes laws and adopts budgets b. resolves disputes among members c. ensures legislation is applied fairly d. represents the eu globally a recent challenge to the european union created by a member state is a. migration b. free trade c. brexit d. the euro which is the most powerful position in the british government? a. the monarch b. the chancellor c. the prime minister d. the president which describes a constitutional monarchy? a. a monarchy in which a king or queen has all the power b. a monarchy in which the people elect the king or queen c. a representative government with a mostly ceremonial ruler d. a representative government with only one set of written laws

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change