PLEASE PLEASE PLEASE ANSWER QUICK PL I NEED HELP WILL GIVE BRAINILEST How did the cotton gin cause slavery to move west?

PLS ANSWER IM SO CONFUSED
ITS 20 POINTS DO IT

Astudy that involves interviews of adults is eligible for expedited review. the researcher wants to add an adolescent population (aged 12 to 17) to the study and has designed a parental permission and assent process. no additional changes are planned. which of the following statements about review of the revised protocol is accurate? the research would only be eligible for expedited review if the adolescents are capable of understanding the same consent forms used for the adult population.the research would only be eligible for expedited review if the adolescents have been declared to be emancipated minors.the new research would need full review by a convened irb because children are a protected population.unless the nature of the questions would raise the level of risk to > minimal for adolescents, the research would still qualify for expedited review.

Which of the following is a constitutional power that the president shares with the senate?

Me fast do you think the outcome of this case would have been the same if president nixon hadclaimed national security needs rather than executive privilege? why or why not?