Separation of Power:
 Is a concept in political science that refers to the division of governmental responsibilities into distinct branches to limit any one branch from exercising too much power. This is often done through the creation of checks and balances among the branches of government.

Montesquieu's theory: Montesquieu, a French philosopher of the 18th century, is often credited with the theory of separation of powers. According to Montesquieu's theory, “the powers of government should be divided into three separate branches: the legislative, the executive, and the judiciary.

1.the legislative branch is responsible for making laws,
2.the executive branch is responsible for enforcing laws, and
3.the judiciary branch is responsible for interpreting laws and resolving disputes.