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Questions and Answers
What is the layer of gases surrounding the Earth called?
What is the layer of gases surrounding the Earth called?
- Troposphere
- Atmosphere (correct)
- Ionosphere
- Stratosphere
What is the composition of air?
What is the composition of air?
- 80% oxygen, 10% nitrogen, 10% argon
- 60% oxygen, 30% nitrogen, 10% other gases
- 78% nitrogen, 21% oxygen, 1% other gases (correct)
- 70% nitrogen, 20% oxygen, 10% carbon dioxide
Which gas is most abundant in the Earth's atmosphere?
Which gas is most abundant in the Earth's atmosphere?
- Nitrogen (correct)
- Carbon Dioxide
- Oxygen
- Argon
Flashcards
What is the atmosphere?
What is the atmosphere?
The layer of gases that surrounds the Earth.
What is the composition of air?
What is the composition of air?
Air is composed of 78% nitrogen, 21% oxygen, and 1% other gases.
Which gas is most abundant?
Which gas is most abundant?
Nitrogen is the most abundant gas in the Earth's atmosphere.
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.
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