The september 11, 2001, attacks on the world trade center and the pentagon prompted president george w. bush to a. suspend u. s. trade with all foreign nations. b. impose economic sanctions on all middle eastern countries. c. declare a global war on terror and send u. s. troops to afghanistan. d. set up peace talks with al qaeda, the group responsible for the attacks.

Below is a description of a resource that you're considering using for a research paper. as you read the description, keep in mind what you've learned about historical thinking skills and use those skills in evaluating whether or not to use the source.

Afull irb committee meeting is convened and one agenda item is a new research proposal to evaluate how mothers interact with their learning-disabled child. the inclusion criteria require the children to be a minimum of five years of age. the protocol requires the mother of the child to look at the child without any expression and not to talk to the child for three minutes. the committee determined that the mother's required task may upset the child. the irb approved the study with appropriate language in the parental permission form regarding the possibility that children might become upset. after the start of the study, the principal investigator reports to the irb that, as expected, one of the children became upset. the incident was handled according to the protocol and the child is fine. what should the irb do with regard to this report?

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?