Why was the open boarder policy important for enabling china to prosper during the rule of the song dynasty

What ways did native americans influence the lives of european settlers in early america ?

President of the united states has scheduled a cabinet meeting today to discuss energy policy with specific focus on pollution and global warming. given what you know of the executive branch, which group of attendees would the president most likely expect to provide up-to-date information and expert insight during this meeting?

The brought textile workers and an machinery together in the same location. a. agricultural revolution. b. mass production system. c. factory system. d. mass transit system.