Which element has the second most % in human body?
Correct answer: D. Carbon 18%Science
- A. Oxygen 65%
- B. Calcium 75%
- C. Hydrogen 10%
- D. Carbon 18%Science
Explanation
Carbon makes up roughly 18% of the body by mass, second only to oxygen at about 65%. Hydrogen is about 10%, so it ranks third among these major elements.
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