The example that demonstrates the concept of federal preemption is the federal government forbidding states from establishing their own air pollution standards.
<h3>What is
federal preemption?</h3>
Federal preemption means that the Constitution and federal laws are the supreme law of the land.
In this case, the federal government forbidding states from establishing their own air pollution standards is an example of preemption because the federal government is imposing its own priorities and preventing states from acting.
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Answer:
<h2><u><em>B. I'm busy</em></u></h2>
Explanation:
<h2>C and D don't make sense.</h2>
Answer:The great flat valleys between hills with great climatic condition
Explanation : The reason ancient civilizations develop in valleys of rivers was due to climatic conditions that favoured agriculture and provided them with water to drink.
The land was very fertile ground suitable for agricultural activities, sufficient water made it easy to irrigate their crops and easy transportation. The areas were also flat with didn't require much work to prepare the land to build shelter.
Answer:
B. Both led to more power for the executive branch of the national government.
Explanation:
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.