7. COMPOSITION AND STRUCTURE OF ATMOSPHERE
This chapter addresses the atmosphere's composition and structure, emphasizing its essential role in supporting life. It explores atmospheric layers, their temperature variations, and key components like gases, water vapor, and dust, as well as the influence of factors like the greenhouse effect and climate change.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- The atmosphere is vital for life, composed mainly of nitrogen and oxygen.
- It consists of different layers (troposphere, stratosphere, mesosphere, thermosphere, exosphere) with varying properties.
- Water vapor and carbon dioxide play critical roles in regulating temperature and climate.
Key Concepts
- -- Troposphere
- The lowest layer of the atmosphere where weather events occur, containing most of the atmosphere's mass and temperature decreases with altitude.
- -- Greenhouse Effect
- The process by which certain gases in the atmosphere trap heat, contributing to the warming of the Earth's surface.
- -- Ozone Layer
- A region in the stratosphere that absorbs most of the sun's harmful ultraviolet radiation.
Additional Learning Materials
Supplementary resources to enhance your learning experience.