Aire is a term that refers to the invisible mixture of gases that surrounds the Earth, primarily composed of nitrogen (about 78%) and oxygen (about 21%). It also contains small amounts of other gases, such as carbon dioxide and argon. Aire is essential for life, as it provides the oxygen that living organisms need to breathe and supports various natural processes. In addition to its role in supporting life, aire plays a crucial part in weather and climate. It helps regulate temperature and carries moisture, which can lead to precipitation. The movement of aire masses influences weather patterns and can affect ecosystems and human activities.