Motion Sickness (Travel Sickness): Causes, Symptoms and Treatments. Written by Sy Kraft B.A. Motion sickness is a very common disturbance of the inner ear that is caused by repeated motion such as from the swell of the sea, the movement of a car, the motion of a plane in turbulent air, etc.
In a federal system of government, or a republic government, states function independently of one another. Although there is almost always a central power. Comments
Unitary governments, federations, and confederations are types of governments that can be found operating in the world today. Each is a potentially successful means of structuring a state. What separates them is the role of the central government within the state.