CUIZ-FACT-25F89154
easy
General Knowledge
✓ Fact-Verified
Which gas makes up most of the Earth's atmosphere?
Verified Answer
Oxygen
Quiz Options
- Oxygen
- Carbon Dioxide
- Argon
- Nitrogen
Explanation & Context
Nitrogen gas constitutes about 78% of the Earth's atmosphere.
Also Asked As / Semantic Queries
"What gas makes up most of the Earth's atmosphere?"
Authoritative Sources & Citations
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