Class 11 Geography Chapter 7 Composition and Structure of Atmosphere Solution

Class 11 Geography Chapter 7 Composition and Structure of Atmosphere Solution

The Earth’s atmosphere, a delicate and vital envelope of gases surrounding our planet, plays a crucial role in sustaining life. It acts as a protective shield, regulates temperature, and provides the necessary components for life to thrive. In this chapter, we delve into the composition and structure of the atmosphere, exploring its various layers and the gases that make up this remarkable blanket.

The atmosphere is composed of a mixture of gases, with nitrogen (N₂) being the most abundant, accounting for approximately 78% of the total composition. Oxygen (O₂) follows, making up around 21% of the atmosphere. Other gases, including carbon dioxide (CO₂), water vapor (H₂O), and traces of noble gases such as argon (Ar) and neon (Ne), constitute the remaining percentage.