<P> Entrenchment is an inherent feature in most codified constitutions . A codified constitution will incorporate the rules which must be followed for the constitution itself to be changed . </P> <P> The US constitution is an example of an entrenched constitution, and the UK constitution is an example of a constitution that is not entrenched (or codified). In some states the text of the constitution may be changed; in others the original text is not changed, and amendments are passed which add to and may override the original text and earlier amendments . </P> <P> Procedures for constitutional amendment vary between states . In a nation with a federal system of government the approval of a majority of state or provincial legislatures may be required . Alternatively, a national referendum may be required . Details are to be found in the articles on the constitutions of the various nations and federal states in the world . </P> <P> In constitutions that are not entrenched, no special procedure is required for modification . Lack of entrenchment is a characteristic of uncodified constitutions; the constitution is not recognised with any higher legal status than ordinary statutes . In the UK, for example laws which modify written or unwritten provisions of the constitution are passed on a simple majority in Parliament . No special "constitutional amendment" procedure is required . The principle of parliamentary sovereignty holds that no sovereign parliament may be bound by the acts of its predecessors; and there is no higher authority that can create law which binds Parliament . The sovereign is nominally the head of state with important powers, such as the power to declare war; the uncodified and unwritten constitution removes all these powers in practice . </P>

2. which two principles are the foundation of every state's constitution (1 point)