📊 Geography
Q. The percentage of oxygen in the atmospheric oxygen is approximately
  • (A) 10%
  • (B) 20%
  • (C) 30%
  • (D) 70%
✅ Correct Answer: (B) 20%

Explanation: Oxygen 20%
Nitrogen 78%
Other gases 1-2%

Explanation by: Ruchi Sharma
Oxygen 20%
Nitrogen 78%
Other gases 1-2%

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