Introduction:
A clear demarcation of power and responsibilities in a country's constitution is essential for the effective functioning of the government and the protection of individual rights. It provides a framework for the distribution of power among different branches of government and ensures accountability and checks and balances.

1. Separation of Powers:
A clear demarcation of power in the constitution establishes the principle of separation of powers, which is crucial for preventing the concentration of power in the hands of a single entity or individual. It divides the government into three branches - the executive, legislative, and judicial - each with its own distinct power and responsibilities. This separation ensures that no branch becomes too powerful and acts as a check on potential abuses of power.

2. Checks and Balances:
A well-defined demarcation of power also facilitates checks and balances between the different branches of government. Each branch has the ability to restrain the actions of the others, ensuring that no branch exceeds its authority. For example, the executive branch can veto legislation passed by the legislature, while the judiciary can strike down laws that are deemed unconstitutional. This system of checks and balances prevents any one branch from becoming dominant and helps maintain the balance of power.

3. Protection of Individual Rights:
A clear demarcation of power in the constitution is crucial for safeguarding individual rights and liberties. It establishes the limits of government authority and ensures that no branch can infringe upon the fundamental rights of citizens. For example, the constitution may explicitly state that the legislature cannot pass laws that violate freedom of speech or religion. This demarcation provides a legal framework for the protection of individual rights and prevents the abuse of power by the government.

4. Avoidance of Chaos and Conflict:
In the absence of a clear demarcation of power and responsibilities, a country may face chaos and conflict. Without clear guidelines, different branches of government may overlap in their functions and responsibilities, leading to confusion and disputes. This can result in a power struggle between the branches or a breakdown of governance. The absence of a clear demarcation can also create opportunities for corruption and abuse of power, as there are no clear boundaries to prevent such actions.

Conclusion:
A clear demarcation of power and responsibilities in a country's constitution is essential for the effective functioning of the government and the protection of individual rights. It establishes the separation of powers, facilitates checks and balances, protects individual rights, and prevents chaos and conflict. Without such a demarcation, a country would be at risk of authoritarianism, abuse of power, and a breakdown of governance.