Weather is the state of the atmosphere at a given time and place, including temperature, humidity, wind, and precipitation. Weather can change from hour to hour, day to day, and season to season due to a variety of factors, including the movement of air masses, the position of the sun in the sky, and the Earth’s rotation on its axis. Some of the most common causes of weather changes include the movement of cold or warm fronts, the development of low or high pressure systems, and the formation of storms such as hurricanes, typhoons, and thunderstorms. In general, weather changes occur as a result of the Earth’s atmosphere being in a state of dynamic equilibrium, with energy being transferred between the surface of the Earth, the oceans, and the atmosphere.