In what way was the government of the tang and song dynasties the same? a. both used a civil service exam to select officials. b. both closed chinese ports to limit foreign trade. c. both gave control to powerful military leaders. d. both made officials change positions every three years.

Ineed this now complete the paragraph about social darwinism. social darwinism to justify by suggesting that it is natural and acceptable for powerful and wealthy nations to colonize regions that are less powerful. used this theory to justify the practice of political, economic, and cultural colonialism.