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.
In a federalist government, the power is divided between the national government and other governmental units. In the U.S., this means the power is divided between our federal government and our state and local governments. This is different from a unitary government, where one unit holds the power. It's also different from a confederation, which is an association of independent governmental units.