3 Questions
What is the layer of gases surrounding the Earth called?
Atmosphere
What is the composition of air?
78% nitrogen, 21% oxygen, 1% other gases
Which gas is most abundant in the Earth's atmosphere?
Nitrogen
Study Notes
Atmosphere
- The layer of gases surrounding the Earth is called the atmosphere.
Composition of Air
- The composition of air is a mixture of different gases.
- The air is primarily composed of:
- Nitrogen (78%)
- Oxygen (21%)
- Argon (0.93%)
- Carbon dioxide (0.04%)
- Other gases (0.03%)
Most Abundant Gas
- Nitrogen is the most abundant gas in the Earth's atmosphere.
Test your knowledge of the composition of air and the Earth's atmosphere in this NCERT Class 7 Geography Chapter 4 quiz. Explore questions on the layer of gases surrounding the Earth and the most abundant gas in the atmosphere. Sharpen your understanding of air composition and atmospheric layers with this quiz.
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