Final answer:
Federalism adapts to the country's changing needs by allowing the federal and state governments to make decisions based on circumstances.
Step-by-step explanation:
Federalism allows the federal and state governments to make decisions based on circumstances, which enables it to adapt to the country's changing needs. This means that in certain situations, the federal government may need to take more control and make decisions for the entire country. In other situations, the state governments may be granted more power to address local needs and concerns.
Learn more about Federalism and adaptation to changing needs