Class 6 Exam > Class 6 Videos > Science for Class 6 > Understanding: Composition of Air
Understanding: Composition of Air Video Lecture | Science for Class 6
FAQs on Understanding: Composition of Air Video Lecture - Science for Class 6
| 1. What are the main components of air? |  |
Ans. The main components of air are nitrogen, oxygen, carbon dioxide, and other trace gases.
| 2. How much of the Earth's atmosphere is composed of oxygen? | |
Ans. Approximately 21% of the Earth's atmosphere is composed of oxygen.
| 3. Why is nitrogen the most abundant gas in the Earth's atmosphere? | |
Ans. Nitrogen is the most abundant gas in the Earth's atmosphere because it is relatively inert and does not react easily with other elements.
| 4. How does the composition of air vary at different altitudes? | |
Ans. The composition of air varies at different altitudes, with a decrease in oxygen levels as altitude increases due to the lower atmospheric pressure.
| 5. How does the composition of air affect human health? | |
Ans. The composition of air, particularly the levels of pollutants like carbon dioxide, can impact human health by causing respiratory issues and other health problems.
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