The concept of concurrent powers responds to the fact that many actions are necessary to serve the people at both the federal and state levels. Most notably, the power to impose and collect taxes is needed in order to raise money needed to provide police and fire departments, and to maintain highways, parks, and other public facilities.
Isaac Newton promoted the idea that science must rely on repeated observation and experimentation.
Answer:
2) Most African American sharecroppers ended each year owing money to the landlord, thus preventing them from leaving the land.