Adventure, wealth, to free Jerusalem from the Turks.
Answer:
Your answers are A, and D
Explanation:
Genghis Khan created the Mongol Empire, and he Conquered parts of Europe ,China and India
Answer: the decision by the United States government to prevent additional settlement
Explanation:
What was meant by the "closing" of the Western frontier was that the United States government wanted to prevent additional settlement.
This decision was as a result of the government's plan to promote the westward expansion after the Civil War, but however, they had to close the Western frontier to prevent additional settlers.