1) States have powers and their own governments yet come together under one federal power to form the United States of America.
2) Checks and balances- the executive checks the legislative, the legislative the judicial, etc. For example, the president can veto Congressional legislation, and the Supreme Court can declare laws and presidential actions unconstitutional. In the same way, Congress can impeach a president.
3) Amendments! There are currently 27. The first 10 are known as the bill of rights.
Im pretty sure the answer is A but somebody check me if im wrong
He mainly contributed exploring the processes of courtship and divorce. He established the so-called principle of least interest, which states that the person who is part of the group, but is the one having the least interest of continuing with the relationship, is the one who has the most power over it. He applies the concept to personal, business and other types of relationships.
In 1932, he published The Sociology of Teaching. He is described as an early classic in the field of education. He extended, for the first time, the idea of considering schools as organizations with an important social role.
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