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Questions and Answers
What is the most abundant gas in Earth's atmosphere?
What is the most abundant gas in Earth's atmosphere?
- Oxygen
- Nitrogen (correct)
- Carbon Dioxide
- Argon
Approximately how far does the Earth's atmosphere reach from the surface of the Earth?
Approximately how far does the Earth's atmosphere reach from the surface of the Earth?
- 80 kilometers
- 10 kilometers
- 33,000 feet
- 900 kilometers (correct)
What percentage of Earth's atmosphere is made up of oxygen?
What percentage of Earth's atmosphere is made up of oxygen?
- 78%
- 0.03%
- 21% (correct)
- 0.9%
What does the Earth's atmosphere primarily protect us from?
What does the Earth's atmosphere primarily protect us from?
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What is the total mass of Earth's atmosphere?
What is the total mass of Earth's atmosphere?
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Study Notes
Earth's Atmosphere
- Nitrogen is the most abundant gas in Earth's atmosphere
- The Earth's atmosphere reaches approximately 10,000 km (6,200 miles) from the surface of the Earth
- Oxygen makes up approximately 21% of Earth's atmosphere
- The Earth's atmosphere primarily protects us from harmful solar and cosmic radiation
- The total mass of Earth's atmosphere is approximately 5.15 x 10^18 kilograms
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