an open system can be affected by the outside environment.
it has flows of information, energy, and/or matter between the system and its environment, and the system adapts to the exchange.
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Answer:
Geography
Egypt’s geography contributed all aspects of Ancient Egyptian’s lives such as the Nile river being their source of food, water and transportation and the desert offering natural protection. And since the Nile floods allowed the Egyptians to grow crops which was a major part of Egypt’s economy.
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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.
 
        
             
        
        
        
Your answer will be.. by convection
        
             
        
        
        
Answer:  [A]:  first .
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