6 Questions
What is the primary focus of the class 6 science chapter 'Air Around Us'?
Properties and composition of air
Which gas makes up the majority of the Earth's atmosphere?
Nitrogen
What is the role of oxygen in the atmosphere?
Supports combustion and respiration
What is the approximate percentage of oxygen in the Earth's atmosphere?
21%
Which gas is considered a greenhouse gas in the Earth's atmosphere?
Carbon dioxide
What is the role of nitrogen in the atmosphere?
To maintain atmospheric pressure
Study Notes
Air Around Us
- The primary focus of the class 6 science chapter 'Air Around Us' is to understand the composition and importance of the air around us.
Composition of the Atmosphere
- Nitrogen makes up the majority of the Earth's atmosphere, taking up about 78% of the total volume.
- Oxygen is the second most abundant gas in the atmosphere, making up approximately 21% of the total volume.
- Oxygen's primary role in the atmosphere is to support life by facilitating breathing and respiration in living organisms.
Greenhouse Gases
- Carbon dioxide is considered a greenhouse gas in the Earth's atmosphere, playing a significant role in regulating the Earth's temperature.
Nitrogen's Role
- Nitrogen's primary role in the atmosphere is to provide a stable and inert environment for life to thrive, making up a large portion of the atmosphere.
Test your knowledge of the class 6 science chapter 'Air Around Us' with these questions! Explore the composition of Earth's atmosphere, the significance of oxygen, and more. Perfect for students looking to reinforce their understanding of air and its properties.
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