Multiple choice

How many pencils could you produce from the carbon that is found in the average human body?

  1. 9

  2. 90

  3. 900

  4. 9000
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The average human body contains enough carbon to produce approximately 9,000 graphite pencils. This is a common scientific trivia fact illustrating the abundance of carbon in organic matter.

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