📊 Geography
Q. What is the primary reason humans cannot breathe on Mars?
  • (A) High gravity
  • (B) No ozone layer
  • (C) Low oxygen level
  • (D) Extreme pressure
✅ Correct Answer: (C) Low oxygen level

Explanation: Mars’s atmosphere lacks enough oxygen for humans to breathe.

Explanation by: Mr. Dubey
Mars’s atmosphere lacks enough oxygen for humans to breathe.

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