They Vote duhhh
Self determination
Self-determination.
India and of course America that's why we can choose our leaders
People who are citizens have a responsibility to vote in elections, to choose representatives in their governments.
Governments gain their just power through consent of the governed, typically through democratic elections or other forms of representation. Just power is also derived from upholding and protecting the rights and welfare of their citizens as outlined in laws and constitutions. Additionally, governments can gain legitimacy by establishing a fair and impartial system of justice.
Passport bar codes are usually scanned at most airports. Many Governments can track this way if they choose.
Only governments can put a price on carbon and make sure businesses pay it. Oil companies have little interest in preventing global warming. They want profits for their shareholders, so they will not act without pressure.
One of the forms of Government is a DEMOCRACY or Democratic Government. In this form of Government, the people of a country choose their leaders through a majority vote.
The European Union is an organisation, not a country, so it does not have a government. It has countries that are members and those countries each have their own governments. They are all democracies, and have elections to choose their governments. There are also elections for countries to send representatives to the European Union institutions.
It is because they are ruled by central government and hence have no elected governments therefore are controlled by president's appointed officials and are not independent to choose their own representative.
The framers of the Constitution chose Federalism because they wanted both the Federal and State governments to have power. They wanted to ensure that no one group had all of the power.