The atmosphere is a layer of gases surrounding the Earth, essential for life. It is primarily composed of nitrogen (about 78%) and oxygen (around 21%). Other gases, such as argon, carbon dioxide, and trace amounts of neon and hydrogen, make up the remaining 1%. This mixture of gases helps regulate temperature and provides the air we breathe. In addition to gases, the atmosphere contains water vapor, which varies in amount depending on the weather and location. The presence of water vapor is crucial for weather patterns and climate, influencing everything from rainfall to temperature changes. Understanding the composition of the atmosphere helps us appreciate its role in sustaining life on our planet.