Answer:
Preemption
Explanation:
Federalism
This is simply known as a form of constitutional setup where power is shared between a central government government and a sub divisional governments called states.
Preemption
This is commonly defined as the right of a federal law or regulation to preclude enforcement of a state or local law or regulation. It happens only if federal law or regulation takes precedence over state or local law or when state or local government touch on a federal field.
The Supremacy Clause stated the Constitution and federal laws are the supreme law of the land. In the advent or occurrence of conflict between federal and state law, the federal law will control and the state law is rendered void.
There are 2 primary instances of preemption. They include:
1) Where federal law expressly preempts state or local law, and
2) Where preemption is implied.
 
        
             
        
        
        
In the years of 1400s, Timbuktu was regarded as one of the most richest city in the world because it's used as a trade center for popular commodities such as Salt, Gold, and Ivory.
Now, this city no longer serve the same purpose at that time, and even considered on of the poorest city in the world.
        
             
        
        
        
Answer: it is named exploitation theory
Explanation:
The exploitation theory is the theory, most associated with Marxists, that profit is the result of the exploitation of wage earners by their employers. It rests on the labor theory of value which states that value is intrinsic in a product according to the amount of labor that has been spent on producing the product.
 
        
             
        
        
        
The North and South were on different sides. The South fight to keep slavery, while the North fought to abolish slavery. It was mostly because of money. If the south were to lose there slaves, they would lose the money they get from the crops.