Final answer:
The main functions of a constitution are to present fundamental principles, define the structure of government, protect citizens' rights, regulate law-making procedures, and promote national unity.
Step-by-step explanation:
The constitution serves several important functions. Firstly, it provides a set of fundamental principles according to which a state or nation is governed. Secondly, it demarcates the structure of the government and outlines the division of powers among different branches.
Thirdly, the constitution protects the rights and liberties of the citizens, ensuring equality and justice. Fourthly, it determines the procedure for making laws and amending the constitution itself. Finally, it serves as a tool of national integration by promoting unity and fraternity among diverse groups in the country.
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