Multiple choice general knowledge history

How long does it take for CO2 in the atmosphere to disperse?

  1. 1 year

  2. 5 years

  3. 100 years

  4. 50 years
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

CO2 persists in the atmosphere for approximately 100 years on average. This long atmospheric lifetime is why CO2 emissions cause long-term climate change. Shorter timescales (1, 5, 50 years) are incorrect.

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