The document defines weather elements and the factors that influence them. It states that temperature depends on hours of sun, latitude, altitude, distance from the ocean, and relief. It explains that air pressure decreases with height and that high pressure causes sunny weather while low pressure causes storms. Humidity depends on temperature, and wind is caused by the movement of air masses from colder to warmer areas. Finally, it indicates that precipitation forms as water evaporates and rises into clouds, then falls as rain, snow, or hail, with more precipitation closer to the equator, sea, or mountains.