Like other molecules, water molecules, H2O (or H-O-H), move, vibrate and rotate in many ways at a temperature above absolute 0. When water molecules are heated up, the total e â¦ nergy of the molecules is increased and result in moving, vibrational and rotational speeds increase. The structure of a water molecule provides a special attracting force between water molecules, hydrogen bond, to keep water molecules together.
Unitary All power is held by the central (national) government. This central government may delegate (or transfer) some duties to smaller political units like cities but it retains final authority over all decisions. Unitary central governments are stronger than federal central governments.
A federal system of government is one that divides the powers of  government between the national (federal) government and state and  local governments. The Constitution of â¦ the United States  established the federal system, also known as federalism.Under  federalism, each level of government has sovereignty in some areas  and shares powers in other areas. For example, both the federal and  state governments have the power to tax.n a very short summary, our Federal system of government is one that creates three balanced branches of government, with power and authority shared among them and limits plac â¦ ed upon each branch. The Federal government is assigned the task of improving things of national importance.