Under the federal system of the United States government, which power is reserved for the states?

How conditions changed in the american south over the final decades of the 1800s for african americans. consider black politics, black voting, and the rise of segregation

Is the weather changing? consider the data of severe weather that includes tornadoes occurring throughout the u. s. over the last four years. compare the severe weather for the last three years. then compare the first three months of 2017 with that data. based on previous years, what might the prediction be for weather during 2017?

Which of the following best describes the aztecsa) skilled engineersb) peaceful farmers c) skilled writers d) mountain dwellers