Multiple choice general knowledge science & technology

How long can the human brain stay alive without oxygen?

  1. 4-6 minutes

  2. 5 minutes

  3. 2-3 minutes

  4. 78 seconds
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The human brain can survive without oxygen for approximately 4-6 minutes before permanent damage occurs. Options B (5 minutes), C (2-3 minutes), and D (78 seconds) are all incorrect - they're either too narrow or below the survival threshold.

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