The Air

Air is a mixture of gases that surrounds Earth, making up the atmosphere. It primarily consists of nitrogen (about 78%), oxygen (about 21%), and small amounts of other gases like argon, carbon dioxide, and trace elements. Air is essential for breathing, supporting life by providing oxygen to humans and animals. It also plays a key role in weather, climate, and protecting us from harmful solar radiation. The composition and quality of air can vary due to natural and human activities, influencing environmental health and air quality standards worldwide.