Which stable element is used to determine the age of volcanic rock

Create a top 5 list of events related to westward expansion that affected african americans the most list of event: missouri compromise compromise of 1850 kansas nebraska act dred scott v sand ford fugitive slave act nat turners rebbelion bleeding kansas harpers ferry explain why you made your 1 on the list number order from most impact to least impact

Group formed to protect artisans and increase their profits

What refers to the division of power among the three branches of government