π
Teacher Explains
Atmosphere
π Introduction to the Atmosphereπ The Importance of Airπ Structure of the Atmosphere
β¨ Introduction to the Atmosphere
The layer of air that covers the Earth's surface is called the atmosphere. Air consists of a mixture of various gases. Water is naturally available in solid, liquid, and gaseous forms. The water cycle describes the movement of water between water sources, land, and the atmosphere.
β¨ The Importance of Air
Air is essential for life on Earth. It provides the oxygen necessary for the survival of all living beings. The atmosphere extends hundreds of kilometers from the Earth's surface. However, the density of the atmosphere varies, being denser near the Earth's surface and thinning with increasing altitude.