Why is it necessary for a country to have a clear demarcation of powers and responsibilities in the constitution? What would happen in the absence of such a demarcation?

It is necessary for a country have a clear demarcation of powers responsibility in the constitution because demarcation allows the institution to work efficiently without any interference from the other institution and overlapping of the power and responsibility. Powers institution like the legislature, the executive the judiciary and even independent statutory bodies like the election commission demarcated.

It is to ensure that no single institution acquires monopoly of power. In the absence of demarcation of fundamental rights there would problem to the citizens and the laws will unjust and unfair. A constitution is to specify has the power to make decisions in a society. In a democratic, it set some limits on what a government can improve on its citizens. These limits are fundamental the sense that government may never intrude them. The constitution show how organs of government should relate to each other. In the countries with federal structure judiciary plays an important role to maintain just environment. To avoid power overlapping and clash demarcation of power and responsibility is important in the constitution.